Underground Marvels
202110 episodes
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Episodes
- S2 E1 - Hotel Bunker of the ApocalypseAugust 5, 202142minExperts reveal how a nuclear bunker was concealed under a palatial hotel.Free trial of discovery+ or buy
- S2 E2 - Mystery of the Kentucky CaveAugust 13, 202142minExperts unearth a mystery from the longest known cave system in the world.Free trial of discovery+ or buy
- S2 E3 - Cincinnati's Secret CavernsAugust 20, 202141minExperts investigate deserted caverns beneath the streets of Cincinnati.Free trial of discovery+ or buy
- S2 E4 - Buried Lab of the Black HillsAugust 27, 202142minExperts investigate a cutting-edge underground laboratory in South Dakota.Free trial of discovery+ or buy
- S2 E5 - Ireland's Underground AlcatrazSeptember 2, 202142minExperts reveal how an Irish military fortress transformed into a prison.Free trial of discovery+ or buy
- S2 E6 - Subterranean Silo SurvivalSeptember 9, 202142minA decommissioned missile launch facility in Kansas remained one of the best kept subterranean military secrets of the Cold War, and now, experts reveal how this abandoned underground complex transformed into a state-of-the-art survival bunker.Free trial of discovery+ or buy
- S2 E7 - Italy's Subterranean SecretSeptember 17, 202142minExperts explore a subterranean world discovered beneath an Italian city.Free trial of discovery+ or buy
- S2 E8 - Grand Canyon's Lost TreasureSeptember 24, 202141minExperts explore the largest dry cave system in North America.Free trial of discovery+ or buy
- S2 E9 - Murder Raid TunnelsOctober 1, 202141minHidden 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.Free trial of discovery+ or buy
- S2 E10 - Medieval Maze of SecretsOctober 8, 202142minA 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.Free trial of discovery+ or buy
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