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Underground Marvels
Season 1 • Episode 3 • Secrets of the Terror Tunnels
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Underground Marvels Season 1, Episode 3: Secrets of the Terror Tunnels
A vast system of tunnels built almost three thousand years ago was the site of the greatest battles of antiquity, and these disorienting passages could be the deadliest weapon in war; experts reveal what made this underground world so terrifying. Watch Underground Marvels Season 1, Episode 3 Secrets of the Terror Tunnels in HD free online. Enjoy high-quality streaming of Underground Marvels Season 1, Episode 3 and share your thoughts in the comments below!
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Episodes
10 episodes
Secrets of the Rock
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Mystery of the Lost Labyrinth
A strange, centuries-old labyrinth built into an abandoned quarry was built by an eccentric millionaire, and no one knows why; but now, a new excavation into this mysterious 9,000-foot tunnel system might finally reveal its dark secrets.
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Secrets of the Terror Tunnels
A vast system of tunnels built almost three thousand years ago was the site of the greatest battles of antiquity, and these disorienting passages could be the deadliest weapon in war; experts reveal what made this underground world so terrifying.
45 min
The Renegade's Lair
A strange underground system known as the Black Cave was home to an infamous nobleman on the run from the law; today, experts investigate the secrets he left here to discover new parts of this mysterious network.
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Cave of the Body Snatchers
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Ghosts of the Hell Maze
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