Underground Marvels

2019

5.0

1 review

TV-PG

Rating

Eligible

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Underground Marvels - Season 2 episodes (10)

1 Hotel Bunker of the Apocalypse

8/6/21

Experts reveal how a nuclear bunker was concealed under a palatial hotel.

2 Mystery of the Kentucky Cave

8/13/21

Experts unearth a mystery from the longest known cave system in the world.

3 Cincinnati's Secret Caverns

8/20/21

Experts investigate deserted caverns beneath the streets of Cincinnati.

4 Buried Lab of the Black Hills

8/27/21

Experts investigate a cutting-edge underground laboratory in South Dakota.

5 Ireland's Underground Alcatraz

9/3/21

Experts reveal how an Irish military fortress transformed into a prison.

6 Subterranean Silo Survival

9/10/21

Experts investigate a decommissioned underground missile launch facility.

7 Italy's Subterranean Secret

9/17/21

Experts explore a subterranean world discovered beneath an Italian city.

8 Grand Canyon's Lost Treasure

9/24/21

Experts explore the largest dry cave system in North America.

9 Murder Raid Tunnels

10/1/21

Experts explore an extensive network of tunnels beneath Ramsgate, England.

10 Medieval Maze of Secrets

10/8/21

Experts investigate medieval tunnels beneath the town of Exeter, England.

About this show

For centuries, people have built mind-blowing structures underground. This series reveals these incredible feats of human endeavor and reveals what people have built, where they've built it, how, and why.

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5.0

1 review

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