Secrets of the Underground
Secrets of the Undergroundhttps://nyafilm4.com/wp-content/uploads/2024/01/MV5BNzhmOGY1YjUtMjU4Ni00NDY1LWE4MGEtYTlkOWVhMjc2ODJjXkEyXkFqcGdeQXVyMTAwMzM3NDI3._V1_SX300.jpgUnknown
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Secrets of the Underground
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Documentary

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Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fasc...inating underworlds of secret tunnel networks, ancient structures, and bizarre geological occurrences that offer glimpses into our history.

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Secrets of the Underground

Release Date:

11 Feb 2017