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Secrets of the Underground (2017)

Secrets of the Underground (2017)

IMDb6.5 HD TV 2017

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 geological occurrences that offer glimpses into our history.

Genres: Documentary
Released: 2017
Directors:
Casts: Rob Nelson, Stefan Burns, Tim Bechtel, Adam Cho, Jared Peacock, Valerie Van Heest, Tracy Beach, Bradley T. Lepper, Brent Breithaupt, Griffin Alberti, Janet Watt, Jennifer Burnham, Larry Johnson, Tim Kilgannon, Aubri Jenson, Luther Strayer, Dale Rucker, Frank Watson