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Season:
1. Hotel Bunker of the Apocalypse
2. Mystery of the Kentucky Cave
3. Cincinnati's Secret Caverns
4. Buried Lab of the Black Hills
5. Ireland's Underground Alcatraz
6. Subterranean Silo Survival
7. Italy's Subterranean Secret
8. Grand Canyon's Lost Treasure
9. Murder Raid Tunnels
10. Medieval Maze of Secrets
Underground Worlds 2019
Historians, engineers, and experts take a look at the underground structures, systems, and phenomena that exist beneath our feet.
Country:
N/A
Genre:
Documentary
First Air:
2019-10-17
Creators:
N/A
Casts:
Chris Jarman
Tags:
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