Underground Marvels

Season 2

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https://uktvplay.co.uk/shows/underground-worlds/series-2

Where to Watch Underground Marvels • Season 2

10 Episodes

Hotel Bunker of the Apocalypse
E1
Hotel Bunker of the ApocalypseThe 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
E2
Mystery of the Kentucky CaveThe 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
E3
Cincinnati's Secret CavernsDeep 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
E4
Buried Lab of the Black HillsBuried 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
E5
Ireland's Underground AlcatrazSubterranean 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
E6
Subterranean Silo SurvivalBuried 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.
Italy's Subterranean Secret
E7
Italy's Subterranean SecretAn 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 Canyons Lost Treasure
E8
Grand Canyons Lost TreasureHidden beneath the town of Ramsgate, England, lies a hidden network of over three miles of air raid tunnels; experts investigate and uncover an extensive WWII bomb shelter that became a permanent refuge for many civilians after a devastating attack.
Murder Raid Tunnels
E9
Murder Raid TunnelsHidden beneath the town of Ramsgate, England, lies a hidden network of over three miles of air raid tunnels; experts investigate and uncover an extensive WWII bomb shelter that became a permanent refuge for many civilians after a devastating attack.
Medieval Maze of Secrets
E10
Medieval Maze of SecretsA forgotten world of ancient underground passages and medieval engineering lies hidden beneath Exeter, England; experts investigate and reveal how this ambitious tunnel system resulted from one of the deadliest epidemics in history.