1 00:00:00,000 --> 00:00:07,000 The Nazca Lines. 2 00:00:07,000 --> 00:00:10,000 Cryptic messages from a lost civilization. 3 00:00:10,000 --> 00:00:16,000 Today, newly discovered symbols may finally unlock one of the world's greatest mysteries. 4 00:00:16,000 --> 00:00:17,000 Whoa! 5 00:00:17,000 --> 00:00:21,000 The sun was setting in the middle of the line. 6 00:00:21,000 --> 00:00:23,000 It has to have a meaning. 7 00:00:23,000 --> 00:00:26,000 That is so cool. New Nazca Lines. 8 00:00:27,000 --> 00:00:29,000 Yes, this is what I wanted to show you. 9 00:00:29,000 --> 00:00:32,000 Incredible. It's huge! 10 00:00:43,000 --> 00:00:45,000 When you think of Peru, what comes to mind? 11 00:00:45,000 --> 00:00:48,000 The soaring Andes Mountains? 12 00:00:48,000 --> 00:00:50,000 Maybe the lush jungles of the Amazon? 13 00:00:50,000 --> 00:00:52,000 Well, if you head a bit further south, 14 00:00:52,000 --> 00:00:57,000 you'll find yourself in one of the driest and most desolate environments on Earth. 15 00:00:59,000 --> 00:01:02,000 2,000 years ago, a mysterious civilization thrived here. 16 00:01:02,000 --> 00:01:08,000 Little was known about them until the 1920s, when commercial flights spotted their giant glyphs. 17 00:01:08,000 --> 00:01:12,000 Symbols inscribed in the sand that became known as the Nazca Lines. 18 00:01:16,000 --> 00:01:18,000 They depict huge animals, 19 00:01:19,000 --> 00:01:20,000 strange figures, 20 00:01:20,000 --> 00:01:23,000 and complex geometric shapes. 21 00:01:24,000 --> 00:01:28,000 For nearly a century, people have been fiercely debating the Nazca Lines. 22 00:01:28,000 --> 00:01:33,000 But several months ago, a sandstorm in the desert revealed something incredible. 23 00:01:34,000 --> 00:01:39,000 Never before seen symbols that may be the key to solving the entire puzzle. 24 00:01:40,000 --> 00:01:46,000 Scientists have also uncovered clues that may reveal how the lines were made with such mathematical precision. 25 00:01:46,000 --> 00:01:49,000 And more importantly, why? 26 00:01:49,000 --> 00:01:53,000 Were they used to pray to the gods or for drug-induced rituals? 27 00:01:53,000 --> 00:01:55,000 Were they a giant astronomical calendar? 28 00:01:55,000 --> 00:02:00,000 Or, as some wild theories suggest, a way to communicate with UFOs? 29 00:02:01,000 --> 00:02:04,000 Well, thanks to the new discoveries, we may finally know the answer. 30 00:02:04,000 --> 00:02:05,000 My mission? 31 00:02:05,000 --> 00:02:09,000 Get to Peru and immerse myself in the world of the Nazca. 32 00:02:09,000 --> 00:02:11,000 I'll examine the new evidence in the case, 33 00:02:11,000 --> 00:02:16,000 and then look for definitive answers to one of the strangest mysteries in the world. 34 00:02:20,000 --> 00:02:22,000 My name is Josh Gates. 35 00:02:23,000 --> 00:02:27,000 With a degree in archaeology and a passion for exploration, 36 00:02:28,000 --> 00:02:32,000 I have a tendency to end up in some very strange situations. 37 00:02:32,000 --> 00:02:35,000 There has got to be a better way to make a living. 38 00:02:35,000 --> 00:02:41,000 My travels have taken me to the ends of the earth as I investigate the greatest legends in history. 39 00:02:41,000 --> 00:02:42,000 We're good to fly, let's go. 40 00:02:42,000 --> 00:02:45,000 This is Expedition Unknown. 41 00:02:50,000 --> 00:02:55,000 After an eight-hour flight, I touch down in Peru's capital city of Lima. 42 00:02:55,000 --> 00:02:58,000 In order to get to the Nazca lines, we have to get to Nazca. 43 00:02:58,000 --> 00:03:02,000 In order to do that, we have to head a few hundred miles south. 44 00:03:07,000 --> 00:03:09,000 Everybody in Peru honks all the time. 45 00:03:09,000 --> 00:03:12,000 They honk when they're happy, they honk when they'd like to get by you, 46 00:03:12,000 --> 00:03:13,000 they honk when they're angry. 47 00:03:13,000 --> 00:03:15,000 Just any time you... 48 00:03:15,000 --> 00:03:17,000 Here's a kid crossing the road. 49 00:03:17,000 --> 00:03:18,000 I'll beep at him. 50 00:03:18,000 --> 00:03:19,000 They love it. 51 00:03:20,000 --> 00:03:24,000 Having honked my way out of Lima, I'm embarking on a 300-mile trek down the coast 52 00:03:24,000 --> 00:03:28,000 to the desert town of Nazca and the never-before-seen Nazca lines 53 00:03:28,000 --> 00:03:30,000 revealed by a recent sandstorm. 54 00:03:31,000 --> 00:03:35,000 The fastest and, well, only way to get there is on the infamous Pan-American Highway. 55 00:03:35,000 --> 00:03:37,000 This is the world's longest road, 56 00:03:37,000 --> 00:03:42,000 30,000 miles of lonely pavement that links almost every country in the Americas. 57 00:03:42,000 --> 00:03:45,000 On one side, steep cliffs drop down to the top of the road, 58 00:03:45,000 --> 00:03:47,000 on the other, endless desert. 59 00:03:49,000 --> 00:03:52,000 This region gets less than an inch of rain a year, 60 00:03:52,000 --> 00:03:55,000 but amidst the barren dunes, there is something unlikely. 61 00:03:56,000 --> 00:03:57,000 Life. 62 00:04:04,000 --> 00:04:06,000 Water in the middle of the desert. 63 00:04:06,000 --> 00:04:07,000 Amazing. 64 00:04:07,000 --> 00:04:10,000 This is Huacachina, home to about 100 people. 65 00:04:10,000 --> 00:04:13,000 It is the only true desert oasis in the Americas. 66 00:04:13,000 --> 00:04:17,000 A small pond of water that somehow defies the dried-up landscape all around it. 67 00:04:18,000 --> 00:04:20,000 Basically, there's this natural oasis here. 68 00:04:20,000 --> 00:04:24,000 People just flock to it, and they created a community around the water. 69 00:04:25,000 --> 00:04:28,000 This thirst-quenching oasis wasn't around during the time of the Nazca, 70 00:04:28,000 --> 00:04:30,000 but the desert was, 71 00:04:30,000 --> 00:04:34,000 and I'm here to get a first-hand look at the landscape the Nazca people somehow conquered. 72 00:04:34,000 --> 00:04:37,000 To do that, I need to go off-road. 73 00:04:37,000 --> 00:04:42,000 Once you leave the highways in southern Peru, this is what's left. 74 00:04:42,000 --> 00:04:44,000 Nothing this. 75 00:04:44,000 --> 00:04:47,000 It's one of the harshest landscapes in the world. 76 00:04:47,000 --> 00:04:50,000 This is Elmer, a local driver who's agreed to show me around. 77 00:04:50,000 --> 00:04:54,000 He's not much for conversation, but he knows these dunes like the back of his hand. 78 00:05:08,000 --> 00:05:11,000 It's my kind of driving. 79 00:05:11,000 --> 00:05:14,000 Peru's deserts are about the size of New York State, 80 00:05:14,000 --> 00:05:17,000 but if I didn't know better, I'd think I was on Mars. 81 00:05:31,000 --> 00:05:33,000 This is crazy. 82 00:05:34,000 --> 00:05:36,000 Elmer, you're crazy! 83 00:05:37,000 --> 00:05:39,000 You're crazy! 84 00:05:40,000 --> 00:05:43,000 I'm not sure what direction we're going, or whether Elmer here has a license, 85 00:05:43,000 --> 00:05:48,000 but I'm quickly learning that out here in the middle of nowhere, there's definitely no speed limit. 86 00:05:48,000 --> 00:05:50,000 Holy s***! 87 00:05:52,000 --> 00:05:57,000 2,000 years ago, the Nazca people walked this scorching desert on foot. 88 00:05:57,000 --> 00:06:02,000 Luckily, modern humans have come up with a much more fun and dangerous way to traverse these dunes. 89 00:06:07,000 --> 00:06:09,000 I got this! 90 00:06:15,000 --> 00:06:17,000 I got this! 91 00:06:17,000 --> 00:06:19,000 I got this! 92 00:06:25,000 --> 00:06:27,000 Nailed it! 93 00:06:28,000 --> 00:06:31,000 You know, I didn't break my legs. 94 00:06:31,000 --> 00:06:37,000 With the sun setting and a lot of sand in my boxers, 95 00:06:37,000 --> 00:06:44,000 we make our way back to the paved road with a new appreciation for how vast and dry the world of the Nazca really was. 96 00:06:51,000 --> 00:06:55,000 By the light of a new day, I continue rumbling down the Pan-American Highway. 97 00:06:56,000 --> 00:07:01,000 After a few more hours on the monotonous road, the dusty outline of buildings appears in the distance. 98 00:07:05,000 --> 00:07:08,000 Welcome to Nazca, the city of eternal summer. 99 00:07:08,000 --> 00:07:12,000 This area has been occupied by humans since time immemorial. 100 00:07:12,000 --> 00:07:17,000 Once home to the ancient Nazca people, it was later a Spanish settlement, a wine region, 101 00:07:17,000 --> 00:07:22,000 and today a quiet town and an outpost for archaeologists and adventurous travelers. 102 00:07:23,000 --> 00:07:27,000 Everywhere you look, there are representations of the Nazca lines. 103 00:07:27,000 --> 00:07:29,000 But I'm here to see the real thing. 104 00:07:29,000 --> 00:07:34,000 Just outside of town, I pull over to get my first look at these mysterious glyphs. 105 00:07:36,000 --> 00:07:39,000 We have arrived at the Nazca lines. 106 00:07:39,000 --> 00:07:41,000 Can you see them? 107 00:07:41,000 --> 00:07:43,000 Me neither. 108 00:07:43,000 --> 00:07:48,000 The problem is that they're so huge and it's so flat here that without any elevation, 109 00:07:48,000 --> 00:07:53,000 they kind of disappear into the desert, which has raised a lot of questions about how they were made 110 00:07:53,000 --> 00:07:56,000 and why were they made if you can't really see them from down here. 111 00:07:56,000 --> 00:08:00,000 In order to get a good view of them, we're going to have to go up. 112 00:08:01,000 --> 00:08:07,000 The Nazca lines were first recorded in 1553 by the Spanish conquistador Pedro Ciesadillón, 113 00:08:07,000 --> 00:08:10,000 but he mistook them for primitive roads. 114 00:08:11,000 --> 00:08:15,000 If only this rickety tower had been built hundreds of years ago, 115 00:08:15,000 --> 00:08:20,000 then perhaps he could have seen the true nature of the lines, which only reveals itself from above. 116 00:08:21,000 --> 00:08:22,000 Wow. 117 00:08:23,000 --> 00:08:24,000 Look at this. 118 00:08:25,000 --> 00:08:26,000 Coming up. 119 00:08:27,000 --> 00:08:28,000 Hey, Dutch. 120 00:08:28,000 --> 00:08:29,000 No, we see it. 121 00:08:29,000 --> 00:08:30,000 That's a crowd. 122 00:08:30,000 --> 00:08:31,000 New Nazca lines. 123 00:08:31,000 --> 00:08:33,000 What does it mean? 124 00:08:33,000 --> 00:08:34,000 That's a crowd. 125 00:08:34,000 --> 00:08:36,000 New Nazca lines. 126 00:08:36,000 --> 00:08:38,000 What does it mean? 127 00:08:46,000 --> 00:08:50,000 I've crossed the deserts of Peru and I'm climbing this lonely observation tower 128 00:08:50,000 --> 00:08:53,000 for my first look at one of the world's greatest enigmas. 129 00:08:54,000 --> 00:08:55,000 Wow. 130 00:08:55,000 --> 00:08:57,000 Look at this. 131 00:09:00,000 --> 00:09:02,000 Those are the Nazca lines. 132 00:09:04,000 --> 00:09:07,000 These lines are a mystery on a massive scale. 133 00:09:07,000 --> 00:09:12,000 There are nearly 100 gigantic figures, as well as strange geometric symbols 134 00:09:12,000 --> 00:09:18,000 and thousands of straight lines that cover an area twice the size of Washington, D.C. 135 00:09:18,000 --> 00:09:21,000 The most famous designs are the huge animals, 136 00:09:22,000 --> 00:09:23,000 the hummingbird, 137 00:09:24,000 --> 00:09:25,000 the condor, 138 00:09:26,000 --> 00:09:27,000 the spider, 139 00:09:28,000 --> 00:09:29,000 and the monkey. 140 00:09:29,000 --> 00:09:33,000 Shapes drawn with a single line that never crosses itself. 141 00:09:35,000 --> 00:09:38,000 It's still only a very small piece of the Nazca lines. 142 00:09:38,000 --> 00:09:42,000 This extends for miles and miles in every direction, but at least we've got a first glimpse. 143 00:09:44,000 --> 00:09:48,000 The big questions are, how were these lines made and what were they for? 144 00:09:48,000 --> 00:09:50,000 There's been a stunning new development. 145 00:09:50,000 --> 00:09:54,000 Previously buried Nazca lines were just revealed by a sandstorm 146 00:09:54,000 --> 00:09:58,000 and some scientists believe they could help solve the mystery. 147 00:09:58,000 --> 00:10:03,000 But before seeking them out, I need to know more about the Nazca people. 148 00:10:03,000 --> 00:10:08,000 I swang into the nearby Museo Antonini, which is filled with relics from the Nazca world, 149 00:10:08,000 --> 00:10:11,000 as well as some grim remains of the Nazca themselves. 150 00:10:14,000 --> 00:10:19,000 This is really one of the most striking and in some ways disturbing part of the Nazca culture. 151 00:10:19,000 --> 00:10:21,000 You see these incredibly well preserved heads, 152 00:10:22,000 --> 00:10:24,000 and they have a whole drill for it. 153 00:10:24,000 --> 00:10:26,000 And they've come to be known as trophy heads. 154 00:10:27,000 --> 00:10:32,000 Some archaeologists have painted the Nazca as peaceful and the skulls as objects that they revered, 155 00:10:32,000 --> 00:10:37,000 while others believe the Nazca were aggressive headhunters, but nobody knows for sure. 156 00:10:39,000 --> 00:10:43,000 In terms of trying to understand more about the Nazca people, you have to look at their pottery. 157 00:10:44,000 --> 00:10:46,000 You know, this is really what they left behind, 158 00:10:46,000 --> 00:10:50,000 and all of these broken pieces are actually the remains of the Nazca people. 159 00:10:50,000 --> 00:10:55,000 You know, this is really what they left behind, and all of these broken pieces are actually clues in a puzzle. 160 00:10:56,000 --> 00:10:59,000 There are several competing theories about the function of the Nazca lines, 161 00:10:59,000 --> 00:11:01,000 and I'm hoping to hone in on the right answer. 162 00:11:03,000 --> 00:11:07,000 Theory one. The lines were used as a sort of massive astronomical calendar, 163 00:11:07,000 --> 00:11:10,000 evidenced by their position beneath the heavens, 164 00:11:10,000 --> 00:11:14,000 and symbols for stars painted on the sides of various ceramics. 165 00:11:16,000 --> 00:11:19,000 Theory two. Since it's hard to see the lines from the ground, 166 00:11:19,000 --> 00:11:22,000 and since so many of them look like landing runways, 167 00:11:22,000 --> 00:11:26,000 many fringe theorists insist that they were built with the help of aliens. 168 00:11:30,000 --> 00:11:33,000 Theory three. The lines were used in drug-fueled rituals, 169 00:11:33,000 --> 00:11:37,000 where wild ceremonies took place to pray for resources from the gods. 170 00:11:38,000 --> 00:11:42,000 Some of these deities were represented by animals, like the monkey or the killer whale. 171 00:11:42,000 --> 00:11:48,000 Pottery depicting psychedelic cactuses and dancing shamans seemed to support this idea. 172 00:11:50,000 --> 00:11:53,000 So which theory is right? I plan to test them out. 173 00:11:53,000 --> 00:11:58,000 First, I want to see if the lines could really be a massive astronomical calendar. 174 00:11:58,000 --> 00:12:02,000 The late German mathematician Maria Reiche was the loudest proponent of this theory, 175 00:12:02,000 --> 00:12:07,000 and she's just about single-handedly responsible for preserving the lines as a World Heritage Site. 176 00:12:07,000 --> 00:12:11,000 Her image is everywhere in Nazca, and her home is now a museum. 177 00:12:11,000 --> 00:12:15,000 To better understand the so-called Lady of the Lines and her theory, 178 00:12:15,000 --> 00:12:18,000 I'm meeting with the head of her foundation, Anna Maria Cagorno. 179 00:12:19,000 --> 00:12:22,000 How did she first come to see the lines? 180 00:12:22,000 --> 00:12:28,000 She was very involved with many scientists in the Museum of Lima. 181 00:12:28,000 --> 00:12:34,000 She met there Dr. Paul Kossack from the University of Long Island, New York. 182 00:12:35,000 --> 00:12:41,000 So they flew, and when they were flying, they saw so many different roads. 183 00:12:41,000 --> 00:12:43,000 They didn't know what they were. 184 00:12:44,000 --> 00:12:49,000 Then they decided to come in the car, and Maria was very curious. 185 00:12:49,000 --> 00:12:57,000 Suddenly, Maria saw that the sun was setting exactly in the middle of the line. 186 00:13:00,000 --> 00:13:03,000 So then she was shocked. It had to have a meaning. 187 00:13:03,000 --> 00:13:08,000 And do you believe that the lines and the glyphs align to celestial bodies? 188 00:13:08,000 --> 00:13:10,000 Well, some of them, yes. 189 00:13:14,000 --> 00:13:21,000 Reiche spent over half a century fighting to prove the astronomical purpose of the lines, 190 00:13:21,000 --> 00:13:24,000 but her work is still hotly debated. 191 00:13:26,000 --> 00:13:32,000 At the Museum's nearby planetarium, I'm meeting Eduardo Azabache from the Peruvian Astronomical Institute. 192 00:13:32,000 --> 00:13:34,000 Hola. Hola. 193 00:13:34,000 --> 00:13:39,000 He's giving me a first-hand look at Maria's theory by showing me how the lines relate to the sky above. 194 00:13:44,000 --> 00:13:54,000 Maria, as she worked on the desert for 40 years, she discovered groups of lines pointed to the rising or setting of the brightest stars, the sun and the moon. 195 00:13:54,000 --> 00:14:04,000 For example, the hummingbird, and she noticed at the longest line point the rising of the sun at summer solstice day. 196 00:14:05,000 --> 00:14:10,000 It does. It goes straight to where the sun came up during the solstice. That's very compelling. 197 00:14:10,000 --> 00:14:17,000 It appears that the hummingbird is in perfect alignment with important astronomical events, and so are other shapes. 198 00:14:17,000 --> 00:14:26,000 This is the corner of the line crossing the bird figure, which was oriented to the setting of the sun at winter solstice day. 199 00:14:26,000 --> 00:14:36,000 And the third figure was the eran. Well, Maria also, noticed that the long beak used to point to the rising of the sun at winter solstice day. 200 00:14:37,000 --> 00:14:47,000 As soon as the sun set or rose on these particular lines, the Nazca would have known it was the first day of winter or the first day of summer, their rainy season. 201 00:14:47,000 --> 00:14:52,000 This calendar could have been a vital agricultural tool for growing crops or collecting water. 202 00:14:52,000 --> 00:14:58,000 But there are hundreds of other lines and animal shapes that don't match up to the sun or stars. 203 00:14:58,000 --> 00:15:03,000 So Maria's work offers only a partial explanation. Time to move on to the next theory. 204 00:15:07,000 --> 00:15:14,000 The next morning I motor out to a blank section of desert to tackle the wildest theory about the lines. 205 00:15:14,000 --> 00:15:21,000 People, and I mean a lot of people, have been insisting for years that since the Nazca couldn't really see their handiwork from the ground, 206 00:15:21,000 --> 00:15:26,000 and since the lines are massive, they must have been made with the help of aliens. 207 00:15:26,000 --> 00:15:33,000 One of the Nazca lines is even referred to as the astronaut, and it does bear a striking resemblance to a notable extraterrestrial. 208 00:15:33,000 --> 00:15:38,000 But I'm not sure I'm buying this as just a giant desert airport for E.T. and his buddies. 209 00:15:40,000 --> 00:15:43,000 So in terms of how the Nazca lines were made, what's the simplest explanation? 210 00:15:43,000 --> 00:15:49,000 Well, maybe the Nazca people just came out here into the desert and they just drew these shapes freestyle. 211 00:15:49,000 --> 00:15:58,000 So that's what I'm going to try to do. This is the spider, one of the most famous of the Nazca lines, and I'm going to attempt to recreate it using this simple piece of bamboo. 212 00:15:58,000 --> 00:16:03,000 J.J., what's your confidence level here on a scale of 1 to 10 as to how good a job I'm going to do? 213 00:16:03,000 --> 00:16:10,000 Two, you do know that 10 is the best that I could possibly do. One is the worst, and he's down to a 1. 214 00:16:13,000 --> 00:16:18,000 Boy, this is not as easy as it looks. 215 00:16:18,000 --> 00:16:23,000 Move away the dark iron-rich sand on top and you reveal lighter-colored sand below. 216 00:16:23,000 --> 00:16:28,000 But since every single footprint and scrape here is permanent, there's little room for error. 217 00:16:30,000 --> 00:16:34,000 The replica I'm attempting is large, but the real Nazca lines are downright huge. 218 00:16:34,000 --> 00:16:42,000 I usually feel tall at 6'2", but next to the larger shape, the 935-foot heron, I'd be the size of an ant. 219 00:16:42,000 --> 00:16:44,000 That is wrong, that's wrong. 220 00:16:45,000 --> 00:16:50,000 You really can't make a mistake because once you kick more sand over it, it just makes more white spots. 221 00:16:50,000 --> 00:16:53,000 This needs to be a mistake-free endeavor. 222 00:16:53,000 --> 00:16:58,000 Kind of looking like a spider, or a menorah. 223 00:16:58,000 --> 00:17:04,000 Here's why this doesn't work. It doesn't work because I'm terrible at it, but it also doesn't work because if you look at the drawing, 224 00:17:04,000 --> 00:17:11,000 you see that it's for the most part very symmetrical, very even-spinning, and it's not as sharp as it looks. 225 00:17:11,000 --> 00:17:15,000 You see that it's for the most part very symmetrical, very even-spacing in between the legs. 226 00:17:15,000 --> 00:17:18,000 These glyphs are hundreds of feet long. 227 00:17:18,000 --> 00:17:24,000 There's no way, freehand, they could possibly make it this exact and have it turn out well. 228 00:17:24,000 --> 00:17:27,000 I kind of don't get it. I don't know how they're doing it. 229 00:17:27,000 --> 00:17:29,000 There has to be something else in play here. 230 00:17:30,000 --> 00:17:42,000 I'm in the Peruvian Desert chasing answers to the mystery of the world-famous Nazca lines. 231 00:17:42,000 --> 00:17:48,000 After trying my hand at drawing my own version, it's obvious I need some professional help. 232 00:17:48,000 --> 00:17:55,000 I'm enlisting one of the world's foremost experts on the lines, Mario Oleacea, the head archaeologist at the Ministry of Nazca, 233 00:17:55,000 --> 00:17:57,000 and his researcher, Alejandra. 234 00:17:58,000 --> 00:18:04,000 Our plan is to recreate the famous hummingbird glyph, though I have no idea how. 235 00:18:04,000 --> 00:18:11,000 So we have a paddle of some kind, a stick, and it looks like some string and some stakes. 236 00:18:11,000 --> 00:18:13,000 Okay, show me the way. Let's do it. 237 00:18:13,000 --> 00:18:21,000 I'm not sure if we're going to build a sandcastle, fly a kite, or stake a desert vampire, but at this point, I'll try anything. 238 00:18:21,000 --> 00:18:23,000 Keep walking straight until he tells you to stop. 239 00:18:24,000 --> 00:18:29,000 In the past, archaeologists theorized that the Nazca must have built platforms to oversee their work. 240 00:18:29,000 --> 00:18:33,000 One historian even built a hot-air balloon out of ancient materials to pull it off. 241 00:18:33,000 --> 00:18:40,000 However, the only physical evidence are small wooden stakes discovered in the sand, which might just lead us to the answer. 242 00:18:43,000 --> 00:18:45,000 The tail has to be a little bit more to the left. 243 00:18:45,000 --> 00:18:49,000 Despite the flat desert, there are actually lots of hills on the edges. 244 00:18:49,000 --> 00:18:54,000 The Nazca could have used a foreman on high ground who relayed instructions to workers below. 245 00:18:54,000 --> 00:19:02,000 Mario believes the Nazca staked out the ends of the shapes, and then, using string, scaled up smaller drawings using mathematical precision. 246 00:19:03,000 --> 00:19:04,000 Go ahead. 247 00:19:05,000 --> 00:19:06,000 Hold on, hold on. 248 00:19:11,000 --> 00:19:15,000 To draw a line, we use wide paddles and start to connect the dots. 249 00:19:20,000 --> 00:19:26,000 Finally, we connect the last line in our shape. 250 00:19:27,000 --> 00:19:30,000 Perfecto, no, no, no, perfecto, está bien ahí. 251 00:19:30,000 --> 00:19:32,000 From this view, it's perfect. 252 00:19:32,000 --> 00:19:33,000 Perfect. 253 00:19:33,000 --> 00:19:34,000 Yes. 254 00:19:34,000 --> 00:19:35,000 Great. 255 00:19:35,000 --> 00:19:36,000 Awesome. 256 00:19:36,000 --> 00:19:37,000 Great work. 257 00:19:37,000 --> 00:19:38,000 Yeah, Mario, you're brilliant. 258 00:19:38,000 --> 00:19:39,000 Great work, buddy. 259 00:19:39,000 --> 00:19:40,000 We made a Nazca line. 260 00:19:41,000 --> 00:19:48,000 I'm astonished to see that our hummingbird is actually really accurate, and we managed to make it with a diagram and a compass. 261 00:19:48,000 --> 00:19:51,000 We made it with a diagram and just a few simple tools. 262 00:19:51,000 --> 00:19:52,000 Take that, UFOs. 263 00:19:56,000 --> 00:20:05,000 Okay, we've debunked the theory that the lines were made by aliens or with the use of complex tools, and the astronomical theory only works on a small portion of the lines. 264 00:20:05,000 --> 00:20:12,000 So I'm driving on to explore the third option, that these lines were purely religious, made for worshiping the gods. 265 00:20:13,000 --> 00:20:18,000 These roads, if you can call them that, are a crisscrossed maze of trails. 266 00:20:18,000 --> 00:20:22,000 But finally, I arrive at what seems like just another set of dunes. 267 00:20:22,000 --> 00:20:25,000 But beneath the sand, there are secrets. 268 00:20:30,000 --> 00:20:37,000 This is Cahuachi, the heart of the Nazca civilization and the only architectural remains of their empire. 269 00:20:38,000 --> 00:20:44,000 Founded around 100 BC, its mud structures are buried under mounds of windblown sand. 270 00:20:56,000 --> 00:20:57,000 Hear that? 271 00:20:57,000 --> 00:21:00,000 That is the sound of absolutely nothing. 272 00:21:00,000 --> 00:21:02,000 It's completely still out here. 273 00:21:02,000 --> 00:21:05,000 Nearby is a sprawling Nazca cemetery. 274 00:21:05,000 --> 00:21:08,000 And it's not for the faint of heart. 275 00:21:08,000 --> 00:21:13,000 Archaeologists have excavated bodies wrapped in embroidered cotton and painted with resin. 276 00:21:13,000 --> 00:21:19,000 The mummification process and dry climate have kept the remains eerily intact. 277 00:21:19,000 --> 00:21:23,000 The burials are very ceremonial. 278 00:21:23,000 --> 00:21:31,000 You know, you have these very fine textiles and bits of pottery, and you see that the pots are filled with things like corn, and we have shells, and we have offerings, 279 00:21:31,000 --> 00:21:35,000 and so much of it is about food and sustenance in the earth. 280 00:21:35,000 --> 00:21:38,000 Definitely a culture that was religious. 281 00:21:41,000 --> 00:21:45,000 I'm meeting historian David Rivas to unlock more mysteries here. 282 00:21:45,000 --> 00:21:46,000 What a spot! 283 00:21:46,000 --> 00:21:51,000 If you had blindfolded me and brought me here, I would say that I was in like ancient Sumeria or Egypt. 284 00:21:51,000 --> 00:21:57,000 It's just 4% of the 24 square kilometers they still have to dig. This is just the beginning. 285 00:21:57,000 --> 00:21:58,000 This is the 4%? 286 00:21:58,000 --> 00:21:59,000 Yes. 287 00:22:01,000 --> 00:22:03,000 96% of it is unexcavated. 288 00:22:03,000 --> 00:22:06,000 It will go all the way down there, and you see those hills over there? 289 00:22:06,000 --> 00:22:07,000 Yeah. 290 00:22:07,000 --> 00:22:09,000 It probably will go over there. 291 00:22:09,000 --> 00:22:16,000 Archaeological evidence now suggests that Kowachi was a sacred pilgrimage site used for religious ceremonies and offerings. 292 00:22:16,000 --> 00:22:22,000 It overlooks many of the lines, strengthening the theory that the shapes in the sand were highly ceremonial. 293 00:22:24,000 --> 00:22:28,000 And while the Nazca who built this site are long gone, their rituals have endured. 294 00:22:31,000 --> 00:22:39,000 This shaman traces his heritage back to the Nazca people, and I'm being invited to participate in an age-old ceremony in the heart of this ruined temple. 295 00:22:39,000 --> 00:22:41,000 It's an honor. Thank you very much. 296 00:22:48,000 --> 00:22:55,000 Nazca are depicted on pottery in a drug-induced trance, which was likely the result of ingesting the local San Pedro cactus. 297 00:22:56,000 --> 00:23:06,000 2000 years ago, our ancestors used all these hallucinogens in order to be in touch with the spirits, in order to find how the future is going to become for them. 298 00:23:06,000 --> 00:23:13,000 Since I have to work in the morning, I'm drinking a less potent brew, hoping to avoid a psychedelic journey to the Nazca spirit world. 299 00:23:13,000 --> 00:23:21,000 This is it. This is it. And now you can share with the world. 300 00:23:22,000 --> 00:23:29,000 The ritual is a window to the past, and a clear indication that the Nazca did use hallucinogenic plants to induce visions. 301 00:23:40,000 --> 00:23:45,000 Between the highly ceremonial burials and this spiritual temple, it overlooks the lines. 302 00:23:45,000 --> 00:23:51,000 There's no question in my mind that the Nazca built their symbols in the sand, in part, to reach out to the gods. 303 00:23:51,000 --> 00:23:55,000 But the question is, what were the lines trying to say? 304 00:23:57,000 --> 00:24:03,000 The answers may be found in never-before-seen lines that were spotted recently by a pilot after a sandstorm. 305 00:24:03,000 --> 00:24:08,000 Can these new shapes help decode the puzzle of the Nazca lines, once and for all? 306 00:24:09,000 --> 00:24:13,000 Hey guys, how are ya? 307 00:24:13,000 --> 00:24:21,000 At dawn, I head over to Nazca's tiny airport to meet with historian Antonio San Cristobal and get a bird's eye view of ancient history. 308 00:24:21,000 --> 00:24:24,000 Okay, let's do it. 309 00:24:28,000 --> 00:24:33,000 As our plane soars over the arid desert, the sand seems to stretch out like a blank canvas. 310 00:24:33,000 --> 00:24:37,000 But then, rising from the dunes, shapes appear. 311 00:24:37,000 --> 00:24:39,000 Everyone. 312 00:24:51,000 --> 00:24:57,000 We soar over several of the massive animal glyphs, including the spider and the condor. 313 00:24:57,000 --> 00:25:02,000 I also have a newfound respect for the soaring hummingbird we attempted to copy. 314 00:25:04,000 --> 00:25:07,000 But I'm also here to see something else. 315 00:25:07,000 --> 00:25:14,000 A few months ago, a pilot spotted previously unknown shapes revealed by the shifting sands. 316 00:25:14,000 --> 00:25:21,000 We bank the plane toward the coordinates for one of the first looks at these mysterious lines. 317 00:25:22,000 --> 00:25:29,000 I'm in southern Peru, circling massive, 1500-year-old drawings in the desert known as the Nazca lines. 318 00:25:29,000 --> 00:25:36,000 We're also hoping to get a look at a set of never-before-seen lines that have just been revealed by a recent sandstorm. 319 00:25:36,000 --> 00:25:37,000 I see it! 320 00:25:37,000 --> 00:25:38,000 I can't see it! 321 00:25:38,000 --> 00:25:39,000 Look! 322 00:25:39,000 --> 00:25:40,000 I see it! 323 00:25:40,000 --> 00:25:41,000 I see it! 324 00:25:41,000 --> 00:25:42,000 I see it! 325 00:25:42,000 --> 00:25:43,000 I see it! 326 00:25:43,000 --> 00:25:44,000 I see it! 327 00:25:44,000 --> 00:25:45,000 I see it! 328 00:25:45,000 --> 00:25:46,000 I see it! 329 00:25:46,000 --> 00:25:47,000 I see it! 330 00:25:47,000 --> 00:25:48,000 I see it! 331 00:25:48,000 --> 00:25:49,000 I see it! 332 00:25:49,000 --> 00:25:50,000 I see it! 333 00:25:50,000 --> 00:25:51,000 Look at that! 334 00:25:51,000 --> 00:25:53,000 That is so cool! 335 00:25:53,000 --> 00:25:54,000 Amazing! 336 00:25:54,000 --> 00:25:56,000 New Nazca lines! 337 00:25:57,000 --> 00:26:05,000 The lines appear to show a 200-foot snake, a bird, and strange zigzag lines. 338 00:26:05,000 --> 00:26:23,000 The Paracas were the tribe who ruled the desert before the Nazca, and archaeologists believe these lines may be some of the oldest ever discovered. 339 00:26:35,000 --> 00:26:36,000 What does it mean? 340 00:26:36,000 --> 00:26:38,000 What does it mean, Antonio? 341 00:26:38,000 --> 00:26:40,000 That's a real question. 342 00:26:40,000 --> 00:26:43,000 Question 5, Nasi Niko. 343 00:26:47,000 --> 00:26:51,000 Back on the ground, and I'm back in my 4x4 on the trail of answers. 344 00:26:51,000 --> 00:26:56,000 So to understand the Nazca people, we have to understand the Paracas people. 345 00:26:56,000 --> 00:27:00,000 To do that, we're going to head to the city of Paracas, which is about four hours north. 346 00:27:01,000 --> 00:27:06,000 From Nazca, it's a few hundred miles through the desert to the small port town of Paracas. 347 00:27:06,000 --> 00:27:11,000 Situated in a wide bay on the Pacific, this town has been inhabited for thousands of years. 348 00:27:11,000 --> 00:27:19,000 The prehistoric tribe that once ruled here has made quite an impression on the current population, though they aren't very talkative. 349 00:27:19,000 --> 00:27:21,000 Sir, I'm going to bother you. 350 00:27:21,000 --> 00:27:24,000 I'm just hoping to learn the secrets of the Nazca people. 351 00:27:24,000 --> 00:27:26,000 Very grumpy. 352 00:27:27,000 --> 00:27:32,000 A few blocks down the street is the Paracas History Museum. 353 00:27:32,000 --> 00:27:36,000 As I browse the collection, the story of the Paracas comes into view. 354 00:27:40,000 --> 00:27:45,000 They lived in these deserts at least a thousand years prior to the Nazca, who invaded them from the north. 355 00:27:47,000 --> 00:27:55,000 After the Nazca conquered the Paracas, they absorbed their culture and continued the animal glyphs and lines that began centuries earlier. 356 00:27:57,000 --> 00:28:02,000 But what really jumps out at me is their shared fascination with heads. 357 00:28:06,000 --> 00:28:15,000 This is incredible. The Paracas people engaged in this really strange ritual of binding and elongating their skulls. 358 00:28:15,000 --> 00:28:24,000 No, these are not alien artifacts. The elongation was accomplished by tying rocks and rope to infants and deforming the skulls while they're still soft. 359 00:28:24,000 --> 00:28:30,000 Why the Paracas did this, we don't fully know, but it is believed to have been something reserved for nobility. 360 00:28:30,000 --> 00:28:32,000 Why the long face? 361 00:28:33,000 --> 00:28:37,000 Come on. Too soon? Two thousand years ago. 362 00:28:43,000 --> 00:28:50,000 Since the newly discovered lines were made by the Paracas people, it stands to reason that the Nazca lines were inspired by this older culture. 363 00:28:50,000 --> 00:28:55,000 In fact, the oldest and strangest of the Paracas lines can only be seen from the ocean. 364 00:28:56,000 --> 00:29:01,000 I'm hitching a ride with local archaeologist Rolando Aibar to see where the lines began. 365 00:29:01,000 --> 00:29:04,000 This is our boat. This is it? Yes. 366 00:29:04,000 --> 00:29:11,000 Our vessel has seen better days, but I'm sure she's seaworthy. The engine is new. The engine's new. That's all that matters. 367 00:29:15,000 --> 00:29:17,000 The term new is being thrown around pretty loosely here. 368 00:29:20,000 --> 00:29:22,000 We got it. Here we go. 369 00:29:27,000 --> 00:29:32,000 Despite the lethally dry desert inland, offshore feels like a Peruvian Galapagos. 370 00:29:37,000 --> 00:29:45,000 Humboldt penguins, sea lions, and flocks of beautiful Peruvian boobies. Those are birds, by the way. The sea here is utterly alive. 371 00:29:46,000 --> 00:29:48,000 Dolphins. Yes. Beautiful. 372 00:29:50,000 --> 00:30:07,000 The Paracas and the Nazca were desert cultures, but the links to the sea are hard to ignore. 373 00:30:08,000 --> 00:30:17,000 The marine wildlife is mirrored in the desert with glyphs like the killer whale and even the famed astronaut, which archaeologists now believe could represent a fisherman. 374 00:30:20,000 --> 00:30:27,000 Down in Nazca, I kept thinking, how could the ancient people survive here, but now that I see this, I realize how dependent they must have been on the sea. 375 00:30:28,000 --> 00:30:35,000 Yes, because those people that came to live here or to stay here, they mainly were fishermen. 376 00:30:36,000 --> 00:30:43,000 The Paracas and the Nazca are starting to come into focus for me. Their lines are deeply tied to their environment and their dependence on water. 377 00:30:44,000 --> 00:30:51,000 Then, as our boat rounds the peninsula, I see something that leaves me speechless. 378 00:30:52,000 --> 00:30:55,000 Judge, this is what I wanted to show you. Look at that sign. 379 00:30:56,000 --> 00:31:01,000 Oh my God, that is incredible. It's huge. 380 00:31:01,000 --> 00:31:18,000 I'm in Peru trying to understand the purpose behind the Nazca lines, and my guide has just shown me a big piece of the puzzle. 381 00:31:19,000 --> 00:31:22,000 Judge, this is what I wanted to show you. Look at that sign. 382 00:31:23,000 --> 00:31:28,000 Oh my God, that is incredible. It's huge. 383 00:31:32,000 --> 00:31:36,000 This is why we call it the Candelabra. 384 00:31:37,000 --> 00:31:43,000 The Candelabra glyph can be seen from 12 miles out to sea. It was made by the Paracas people. 385 00:31:45,000 --> 00:31:46,000 How old is it? 386 00:31:47,000 --> 00:31:52,000 It's about 2200 years old. The Paracas did not come from Candelabras. It was born by the Spanish. 387 00:31:53,000 --> 00:31:55,000 But this could be a cactus. 388 00:31:55,000 --> 00:32:04,000 The big branch, the big column in the middle, if you elongate that column, it is linked to the hummingbird of Nazca lines. 389 00:32:05,000 --> 00:32:06,000 Really? 390 00:32:07,000 --> 00:32:09,000 That one represents the beginning of the rainy season there in Nazca. 391 00:32:10,000 --> 00:32:11,000 They point to the same direction? 392 00:32:12,000 --> 00:32:13,000 Exactly. 393 00:32:14,000 --> 00:32:15,000 Wow, that's incredible. It all comes down to water. 394 00:32:16,000 --> 00:32:17,000 Yes, exactly. 395 00:32:18,000 --> 00:32:23,000 Hearing that the Paracas Candelabra is aligned to the Nazca hummingbird bolsters the theory that the shapes are tied to water. 396 00:32:24,000 --> 00:32:29,000 One historian who believes he can prove that has a bold new theory about the lines. 397 00:32:34,000 --> 00:32:40,000 Back on shore and a few miles inland, I'm meeting with the director of the Paracas History Museum, Brian Forrester. 398 00:32:41,000 --> 00:32:43,000 Brian, I hear you're the man to talk to about the Paracas people. 399 00:32:44,000 --> 00:32:46,000 Well, I guess I'm one of them, but sure, I'll take the job. 400 00:32:47,000 --> 00:32:50,000 Quickly learning that to understand the Nazca, you've got to understand the Paracas. 401 00:32:51,000 --> 00:32:52,000 It's essential. 402 00:32:52,000 --> 00:32:53,000 So, how do I do that? 403 00:32:54,000 --> 00:32:56,000 Well, I've got a couple of special places I want to show you. 404 00:32:57,000 --> 00:32:58,000 All right. 4x4? 405 00:32:59,000 --> 00:33:00,000 No. 406 00:33:01,000 --> 00:33:02,000 Why not? 407 00:33:02,000 --> 00:33:03,000 Sand. 408 00:33:04,000 --> 00:33:05,000 More sand. 409 00:33:05,000 --> 00:33:06,000 Yeah. 410 00:33:11,000 --> 00:33:17,000 Brian is taking me deep into Paracas territory, where exactly I'm not sure, but I'm anxious to see what he has in store. 411 00:33:17,000 --> 00:33:23,000 The Paracas thrived in one of the most inhospitable deserts on Earth, and ultimately, they died here too. 412 00:33:24,000 --> 00:33:25,000 Is that bone? 413 00:33:25,000 --> 00:33:26,000 Yeah. 414 00:33:28,000 --> 00:33:35,000 This is a recently dug-up grave of someone at least 500, maybe a thousand, maybe even 2,000 years old. 415 00:33:36,000 --> 00:33:43,000 Brian has led me to a massive Paracas cemetery, a necropolis that's a mile wide and five miles long. 416 00:33:44,000 --> 00:33:46,000 Rough estimate, how many people do you think are buried here? 417 00:33:46,000 --> 00:33:48,000 I would say at minimum 10,000. 418 00:33:49,000 --> 00:33:50,000 Unbelievable. 419 00:33:50,000 --> 00:33:55,000 But this site is completely unattended, and at the mercy of any looter with enough gas to get out here. 420 00:33:55,000 --> 00:33:57,000 Many of the graves have been totally destroyed. 421 00:33:58,000 --> 00:34:00,000 These trenches that I see along the way here, those are looted graves? 422 00:34:01,000 --> 00:34:02,000 Yes. 423 00:34:02,000 --> 00:34:05,000 And underneath here, still preserved burials as well, I assume. 424 00:34:05,000 --> 00:34:06,000 Oh, many, many more. 425 00:34:07,000 --> 00:34:09,000 This is someone's skull. 426 00:34:13,000 --> 00:34:14,000 Unbelievable. 427 00:34:15,000 --> 00:34:17,000 That is incredible. 428 00:34:18,000 --> 00:34:22,000 I'm looking face to face at a... a... a parakeet, probably. 429 00:34:22,000 --> 00:34:23,000 Yeah. 430 00:34:24,000 --> 00:34:32,000 I've never had the experience before of stopping in a place and picking up a human skull out of the ground. 431 00:34:34,000 --> 00:34:38,000 We carefully return the skull to the ground and recover it with sand. 432 00:34:38,000 --> 00:34:44,000 After hundreds of years of being in peace, put them back in a state of peace like that. 433 00:34:47,000 --> 00:34:50,000 Back on the ATVs, we head deeper into the desert. 434 00:34:50,000 --> 00:34:58,000 Brian has researched the glyphs and lines in the area and calculated that a number of the lines intersect at a location several miles to the east. 435 00:34:58,000 --> 00:35:00,000 I'm anxious to find out why. 436 00:35:01,000 --> 00:35:05,000 As we round the bend, a buried Caracas temple looms before us. 437 00:35:09,000 --> 00:35:10,000 Wow. 438 00:35:14,000 --> 00:35:20,000 Much like the Nazca temple of Cahuaqi, this Parakean pyramid was a gathering place for religious ceremonies. 439 00:35:20,000 --> 00:35:21,000 That's incredible. 440 00:35:21,000 --> 00:35:22,000 Yeah. 441 00:35:22,000 --> 00:35:24,000 Just unexcavated. 442 00:35:24,000 --> 00:35:25,000 Yeah. 443 00:35:25,000 --> 00:35:26,000 Trapped in the dunes. 444 00:35:26,000 --> 00:35:27,000 Yeah. 445 00:35:27,000 --> 00:35:28,000 A pyramid. 446 00:35:28,000 --> 00:35:30,000 How many of these do you think there are here? 447 00:35:30,000 --> 00:35:32,000 In this area, there are hundreds. 448 00:35:32,000 --> 00:35:37,000 The foundation of it at least would be 2,000 plus years old. 449 00:35:38,000 --> 00:35:41,000 The Paracas were the first established culture of this area. 450 00:35:41,000 --> 00:35:49,000 So the Paracas were responsible for at least 50% of the geoglyphs and lines, and then the Nazca, the second 50%. 451 00:35:49,000 --> 00:35:56,000 When you look at the Nazca lines, when you look at the glyphs and the geometric shapes and the Paracas shapes, what do you think they're for? 452 00:35:56,000 --> 00:35:59,000 There's no real cohesion or basic pattern. 453 00:35:59,000 --> 00:36:03,000 I think some of them are for solar and lunar alignment. 454 00:36:03,000 --> 00:36:05,000 Some of them are ceremonial pathways. 455 00:36:05,000 --> 00:36:09,000 Some of them are for tracking underground water systems. 456 00:36:09,000 --> 00:36:12,000 This is a bombshell. 457 00:36:12,000 --> 00:36:25,000 Brian believes that not only were the lines used for ceremonial purposes to pray for water, but that many of them may actually lead to water, a sort of physical map over laying underground rivers and pointing to natural wells. 458 00:36:25,000 --> 00:36:27,000 You think there's ancient water sources here? 459 00:36:27,000 --> 00:36:36,000 It's possible that slightly under the ground of that area, we can find water today. 460 00:36:36,000 --> 00:36:38,000 Looking for water in the desert? 461 00:36:38,000 --> 00:36:39,000 Yep. 462 00:36:39,000 --> 00:36:41,000 Sounds like a challenge. 463 00:36:45,000 --> 00:36:54,000 The lines that led us to this pyramid likely guided the Paracas on ceremonial processions, but might also have functioned as directions to water. 464 00:36:54,000 --> 00:36:56,000 What do we think these depressions are? 465 00:36:56,000 --> 00:37:00,000 It could actually be accesses like little wells for water. 466 00:37:00,000 --> 00:37:01,000 Really? 467 00:37:01,000 --> 00:37:02,000 Yeah. 468 00:37:02,000 --> 00:37:04,000 So you're saying that there may be water under this? 469 00:37:04,000 --> 00:37:06,000 Well, I'm saying it's possible, yeah. 470 00:37:08,000 --> 00:37:10,000 Well, let's give it a whirl. Let's see if there's anything here. 471 00:37:10,000 --> 00:37:11,000 Okay. 472 00:37:14,000 --> 00:37:23,000 Brian's theory strikes me as impossible, mostly because this is an absolutely lifeless desert, but he's convinced, so I've got little choice but to start digging. 473 00:37:23,000 --> 00:37:26,000 This is a ridiculous way to spend an afternoon. 474 00:37:28,000 --> 00:37:32,000 Update, I'm parched, I'm sweating, and it's 8,000 degrees out. 475 00:37:32,000 --> 00:37:37,000 The more we dig, the more I feel like the only thing I'm going to find beneath the sand is sand. 476 00:37:37,000 --> 00:37:39,000 How far down do you think it really is? 477 00:37:39,000 --> 00:37:41,000 I wouldn't think even 10 feet below, really? 478 00:37:41,000 --> 00:37:43,000 Yeah, well, we're hitting a lot of roots. 479 00:37:43,000 --> 00:37:44,000 Yeah, that's a good sign. 480 00:37:44,000 --> 00:37:49,000 These roots are dead, and if Brian and I don't get back to the road before dark, we might be too. 481 00:37:49,000 --> 00:37:54,000 But if there is an underground stream here, we might also answer the riddle of the Nazca lines. 482 00:37:58,000 --> 00:38:02,000 I can't help but notice that I'm down in the pit shoveling and you're supervising. 483 00:38:02,000 --> 00:38:04,000 Well, I'm a local. 484 00:38:04,000 --> 00:38:05,000 Right. 485 00:38:05,000 --> 00:38:08,000 It's your right as a visitor to Explorer. 486 00:38:08,000 --> 00:38:10,000 I appreciate you letting me do that. 487 00:38:10,000 --> 00:38:11,000 My honor. 488 00:38:14,000 --> 00:38:16,000 The soil's getting harder. 489 00:38:16,000 --> 00:38:17,000 Yeah. 490 00:38:20,000 --> 00:38:21,000 Whoa. 491 00:38:21,000 --> 00:38:23,000 Oh, wait, wait. 492 00:38:30,000 --> 00:38:34,000 I've come to Peru to investigate the mystery of the Nazca lines. 493 00:38:34,000 --> 00:38:39,000 After following these symbols deep into the desert, we're digging to see if they were used to locate water. 494 00:38:39,000 --> 00:38:40,000 Whoa. 495 00:38:40,000 --> 00:38:42,000 Oh, wait, wait. 496 00:38:43,000 --> 00:38:44,000 Look at that. 497 00:38:44,000 --> 00:38:45,000 Wet soil. 498 00:38:45,000 --> 00:38:47,000 Yep, you've hit the water table. 499 00:38:49,000 --> 00:38:50,000 Water. 500 00:38:50,000 --> 00:38:56,000 There is water down here in the desert. 501 00:38:56,000 --> 00:38:57,000 Yeah. 502 00:38:57,000 --> 00:39:06,000 This discovery at the convergence of these lines is compelling evidence that the prehistoric tribes of Peru might have carved their massive symbols to track water. 503 00:39:06,000 --> 00:39:08,000 That is so cool. 504 00:39:08,000 --> 00:39:09,000 Amazing. 505 00:39:09,000 --> 00:39:10,000 You know what? 506 00:39:10,000 --> 00:39:13,000 I don't want to say that I doubted you, but I really doubted you. 507 00:39:13,000 --> 00:39:15,000 Thanks for the hard work. 508 00:39:15,000 --> 00:39:16,000 This is incredible. 509 00:39:16,000 --> 00:39:20,000 It really may be that the shapes in the Nazca lines do point to water. 510 00:39:20,000 --> 00:39:22,000 Some of them at least, yeah. 511 00:39:22,000 --> 00:39:23,000 Yeah, that's incredible. 512 00:39:23,000 --> 00:39:24,000 It's hard to argue with that. 513 00:39:24,000 --> 00:39:26,000 Wet soil right here. 514 00:39:27,000 --> 00:39:35,000 As we leave the sand-choked ruins of the Paracas civilization and head back to Nazca, there are other clues that may back this theory up. 515 00:39:35,000 --> 00:39:39,000 With just an inch of rain a year, the Nazca became masters of water management. 516 00:39:39,000 --> 00:39:44,000 Some of the lines, including the newly discovered lines, depict strange spiral shapes. 517 00:39:44,000 --> 00:39:50,000 And on the edge of town, there are similarly shaped holes that actually serve a very real purpose. 518 00:39:53,000 --> 00:39:55,000 So these are called ojos. 519 00:39:55,000 --> 00:39:59,000 It's basically a very elaborate looking manhole. 520 00:40:00,000 --> 00:40:04,000 It's a check well that goes down to an underground aqueduct system. 521 00:40:04,000 --> 00:40:07,000 This is the very bottom of the system. 522 00:40:07,000 --> 00:40:10,000 And what's so cool about this is there's no cement lining this. 523 00:40:10,000 --> 00:40:12,000 There's no concrete here. 524 00:40:12,000 --> 00:40:20,000 There's just naturally piled rocks, and they're using the natural sediment of the floor here to allow this water to just pass through. 525 00:40:20,000 --> 00:40:23,000 It doesn't absorb, it just passes like an underground river. 526 00:40:23,000 --> 00:40:28,000 These wells led to tiny underground streams that flow down from the Andes. 527 00:40:28,000 --> 00:40:34,000 2,000 years ago, the Nazca figured out how to tap into them, and it's so well built that it still works. 528 00:40:34,000 --> 00:40:36,000 It's so cold. 529 00:40:36,000 --> 00:40:38,000 You can see that down here. 530 00:40:38,000 --> 00:40:48,000 This system is working exactly as it did 1,500 years ago, providing clean, drinkable water to the Nazca people. 531 00:40:51,000 --> 00:40:55,000 But in the past, terrible droughts created constant need for other water sources. 532 00:40:55,000 --> 00:40:59,000 And I now believe we have the answer to the riddle of the lines. 533 00:41:03,000 --> 00:41:05,000 The lines don't have one purpose. 534 00:41:05,000 --> 00:41:08,000 That's why there's so little order to their layout. 535 00:41:08,000 --> 00:41:13,000 They serve several functions, all related to the most precious resource in a desolate world. 536 00:41:13,000 --> 00:41:15,000 Water. 537 00:41:17,000 --> 00:41:24,000 We've seen that some of the lines were astronomical, a way to track the very brief rainy season and plan for crops. 538 00:41:24,000 --> 00:41:30,000 We've also seen that the lines are clearly ceremonial, massive glyphs used to pray for water. 539 00:41:30,000 --> 00:41:32,000 The thirsty hummingbird. 540 00:41:32,000 --> 00:41:34,000 The resilient cactus. 541 00:41:34,000 --> 00:41:35,000 The fisherman. 542 00:41:35,000 --> 00:41:37,000 All symbols tied to water. 543 00:41:38,000 --> 00:41:44,000 The newly discovered lines show a snake and wavy lines, both ancient symbols for water. 544 00:41:44,000 --> 00:41:50,000 And finally, it seems that some of the lines may actually point to or overlay subterranean water sources, 545 00:41:50,000 --> 00:41:54,000 a dusty map that evolves over generations. 546 00:41:55,000 --> 00:42:01,000 In time, the Nazca culture was absorbed by other tribes, just as they absorbed the paracas. 547 00:42:01,000 --> 00:42:03,000 Their legacy is beneath our feet. 548 00:42:03,000 --> 00:42:10,000 There are still thousands of structures trapped in the dunes, and there's no doubt that more symbols are destined for discovery. 549 00:42:10,000 --> 00:42:14,000 The Nazca were masters of conservation in a punishing world. 550 00:42:14,000 --> 00:42:18,000 We now know that their lines were a complex system for survival. 551 00:42:18,000 --> 00:42:25,000 But with so much of their culture still unexplored, who knows what new mysteries will emerge from beneath the sands.