We're actually close towhere the water is flowing and there's these giant boulders
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We're actually close to
where the water is flowing and there's these giant boulders
where the water is flowing and there's these giant boulders
Full Transcript
00:00:01.000 --> 00:00:04.002
We're actually close to
where the water is flowing
00:00:04.028 --> 00:00:06.068
and there's these giant boulders.
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Movie Summary
Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre g...
