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Underground Marvels S02 | Loggd

Underground Marvels

Season 2

2021 • 10 Episodes

0 0 0 0

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Hotel Bunker of the Apocalypse

S02 E01 • Thursday, Aug 5, 2021 • Aug 5 • 45m

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.

Mystery of the Kentucky Cave

S02 E02 • Thursday, Aug 12, 2021 • Aug 12 • 45m

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.

Cincinnati's Secret Caverns

S02 E03 • Thursday, Aug 19, 2021 • Aug 19 • 45m

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.

Buried Lab of the Black Hills

S02 E04 • Thursday, Aug 26, 2021 • Aug 26 • 45m

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.

Ireland's Underground Alcatraz

S02 E05 • Thursday, Sep 2, 2021 • Sep 2 • 45m

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.

Subterranean Silo Survival

S02 E06 • Thursday, Sep 9, 2021 • Sep 9 • 45m

Experts investigate a decommissioned underground missile launch facility.

Italy's Subterranean Secret

S02 E07 • Thursday, Sep 16, 2021 • Sep 16 • 45m

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.

Grand Canyon's Lost Treasure

S02 E08 • Thursday, Sep 23, 2021 • Sep 23 • 45m

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.

Murder Raid Tunnels

S02 E09 • Thursday, Sep 30, 2021 • Sep 30 • 45m

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

Medieval Maze of Secrets

S02 E10 • Thursday, Oct 7, 2021 • Oct 7 • 45m

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.

Underground Marvels

Season 2

2021 • 10 Episodes