The Serpent Mound has hiddenits secrets for centuries
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The Serpent Mound has hidden
its secrets for centuries
its secrets for centuries
Full Transcript
00:00:01.000 --> 00:00:05.016
The Serpent Mound has hidden
its secrets for centuries...
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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...