Underground Marvels

World's Biggest Labyrinth

TV-PG
S1 • E6    Nov 21, 2019    45m
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.

Where to Watch Underground Marvels - S1 • E6

Cast of World's Biggest Labyrinth

  • Chris JarmanSelf - Narrator (voice)

 

  •   
  •   
  •   
  •   
  •   
  •   
  •   

Take Plex everywhere

Watch free anytime, anywhere, on almost any device.
See the full list of supported devices