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Underground Worlds: 1x6
World's Biggest Labyrinth
The world’s biggest labyrinth is a 1,553-mile cave system that’s home to some of history’s darkest mysteries, and new discoveries at this strange place reveal the long-lost secrets of Nazi occupation, Soviet revolution, and Cold War subterfuge.
1 - 1Secrets of the Rock Oct. 17, 2019- 1 - 2Mystery of the Lost Labyrinth Oct. 24, 2019
- 1 - 3Secrets of the Terror Tunnels Oct. 31, 2019
- 1 - 4The Renegade's Lair Nov. 07, 2019
- 1 - 5Cave of the Body Snatchers Nov. 14, 2019
- 1 - 6World's Biggest Labyrinth Nov. 21, 2019
- 1 - 7Treasures of the Lost Mine Dec. 05, 2019
- 1 - 8Ghosts of the Hell Maze Dec. 12, 2019
- 1 - 9Conspiracy in the Buried City Dec. 19, 2019
- 1 - 10Curse of Cannibal Caves Dec. 26, 2019
