Underground Marvels

2019
Underground Marvels

Seasons & Episodes

  • 2
  • 1

EP1 Hotel Bunker of the Apocalypse Aug 05, 2021

The top-secret construction of a massive nuclear bunker remained concealed under a palatial West Virginia hotel for decades, and now, experts reveal how this vast subterranean structure was one of the most closely guarded Cold War secrets in US history.

EP2 Mystery of the Kentucky Cave Aug 12, 2021

The longest known cave system in the world spans hundreds of miles beneath the hills of Kentucky, and containing prehistoric artifacts and ancient human remains, experts reveal a subterranean mystery that may have changed the course of U.S. history.

EP3 Cincinnati's Secret Caverns Aug 19, 2021

Deep beneath the streets of Cincinnati lies a network of deserted tunnels and caverns that contain a remarkable history of the city's origins, and now, experts investigate to reveal who built this underground labyrinth and why it was abandoned.

EP4 Buried Lab of the Black Hills Aug 26, 2021

Buried nearly a mile beneath the Black Hills of South Dakota is a cutting-edge laboratory at the forefront of astonishing scientific research; experts reveal advancements engineers achieved more than a century ago that keep it operating today.

EP5 Ireland's Underground Alcatraz Sep 02, 2021

Subterranean military fortresses situated on the southern coast of Ireland have protected against enemy invasion for over 400 years, and now, experts investigate how this powerful stronghold transformed into a brutal and terrifying prison.

EP6 Subterranean Silo Survival Sep 09, 2021

Experts investigate a decommissioned underground missile launch facility.

EP7 Italy's Subterranean Secret Sep 16, 2021

An unprecedented landslide unveils a hidden world beneath a picturesque town in northern Italy, and now experts investigate this vast network of tunnels and passageways that stretch 300 feet underground to reveal the city's subterranean past.

EP8 Grand Canyon's Lost Treasure Sep 23, 2021

Descending more than 200 feet beneath the Arizona bedrock lies the largest dry cave system in North America; experts explore this vast subterranean network to reveal the mysteries and undiscovered treasure that remain hidden within its walls.

EP9 Murder Raid Tunnels Sep 30, 2021

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

EP10 Medieval Maze of Secrets Oct 07, 2021

A forgotten world of ancient underground passages and medieval engineering lies hidden beneath the town of Exeter, England; experts investigate and reveal how this ambitious tunnel system was the result of one of the deadliest epidemics in history.
6.8| 0h30m| TV-PG| en| More Info
Released: 17 October 2019 Returning Series
Producted By: TCB Media Rights
Country: United States of America
Budget: 0
Revenue: 0
Official Website: https://uktvplay.uktv.co.uk/shows/underground-worlds/watch-online/
Synopsis

Historians, engineers, ​and experts take a look at the underground structures, systems, and phenomena that exist beneath our feet.

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