Secrets of the Underground

Produced by Lucky 8 TV

A fascinating new world has emerged for scientists to study, and it's just beneath their feet. With the emergence of cutting-edge technologies such as ground penetrating radar, LIDAR (Light Detection and Ranging), and 3-D imaging, scientists are now able to research underworlds of secret tunnel networks, ancient structures, and bizarre geological occurrences that offer glimpses into the past. In this series for Science Channel, explorer Rob Nelson and geophysicist Stefan Burns span the globe to investigate long-lost, subterranean phenomena, from intricate and forgotten sewers and caves to lost civilizations and structures.

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