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7+
2007
2 Seasons
Science & Nature
Paranormal
Secrets of the Underground
: Scientist Rob Nelson uses the latest tech to investigate the strangest underground locations in the world.
1. Capone's Escape Tunnels
Rob Nelson investigates rumors of an underground escape tunnel used by Al Capone...
2. Mystery of the Serpent Mound
Rob Nelson investigates rumors of a secret organization operating in several loc...
3. America's Buried Massacre
Rob Nelson hunts for a legendary mass grave that could expose a dark secret from...
4. Rocky Mountain Monsters
Rob Nelson examines a bizarre landscape that suggests a violent clash between pr...
5. Great Lakes Bermuda Triangle
Rob Nelson explores a phenomenon that's caused ships to disappear for centuries ...
6. California's Hidden Doomsday
Rob Nelson investigates a network of major fault lines that could trigger a mass...
7. Secret History of the New World
Rob Nelson investigates a cluster of mysterious ruins that may have been built b...
8. American Stonehenge
Rob Nelson uses state-of-the-art technology to search for rumored escape tunnels...
Secrets of the Underground
Genres
Science & Nature, Paranormal, Mysteries
Episodes
2 Seasons (16 Episodes )
Release Year
2007
About This Series
Scientist Rob Nelson investigates the strangest underground locations in the world, using the latest technology and research to shed new light on the secrets that lie just beneath our feet.
