2 Season
20 Episode
Underground Marvels - Season 1 Episode 8 Ghosts of the Hell Maze
A labyrinth of tunnels in the French countryside has served as a secret hideout during wartime for centuries. On its walls, experts have discovered the final confessions of soldiers who fought here during one of the deadliest days of World War I.
- Year : 2021
- Country : United Kingdom, United States of America
- Genre : Documentary
- Studio : Science, U&Yesterday
- Keyword :
- Director :
- Cast :
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