World's Biggest Labyrinth
Underground Marvels · Season 1 · Episode 6
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.
Episode Details
Air date, runtime, timezone, and episode position.
Season
1
Episode
6
Air Date
21/Nov/2019
Air Time
22:00
Runtime
45 min
Overview
Episode summary.
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.
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