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Hidden Beneath the Cities
Uncover the extraordinary worlds lying just below modern urban centers.
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SEASON 1
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SEASON 1
44:03
S1 E10 - Secret School and Concealed Castle Cemetery
A mysterious tunnel, colonial ruins. and warrior cemeteries are exposed.
TV-PG | 04.25.2026
44:03
S1 E9 - Subterranean Seoul and Railway Revealed
Underground chambers, medieval tombs, old ruins and fossils are uncovered.
TV-PG | 04.25.2026
44:03
S1 E8 - Bones Beneath and Coffins and Coins
A sealed tomb containing 12 skeletons; unearth a hoard of coins hidden during a Scottish massacre.
TV-PG | 04.25.2026
44:03
S1 E7 - Buried Battleship and Viking Victims
A buried ship, wartime cellars, jar burials and mass graves are excavated.
TV-PG | 04.25.2026
44:03
S1 E6 - Subterranean Secrets and Forgotten Foundations
Explorers find a tunnel system, mass graves, city foundations, and longhouses.
TV-PG | 04.25.2026
44:03
S1 E5 - Labyrinths and Legends
Volunteers unearth tunnel systems, and a sealed burial tomb is found.
TV-PG | 04.25.2026
44:03
S1 E4 - Tunnels and Tombs
Explorers discover tunnel systems, a sprawling city, and military barracks.
TV-PG | 04.25.2026
44:06
S1 E3 - Hidden Hypogeum and Lost Letters
Archaeologists find a tomb, a haunting cave, and a sophisticated labyrinth.
TV-PG | 04.25.2026
44:06
S1 E2 - Crystal Cathedrals and Buried Bunkers
Scientists uncover salt chambers, bunkers, old kingdoms, and mysterious caves.
TV-PG | 04.25.2026
44:03
S1 E1 - Underground Cities and Secret Chambers
Scientists uncover a city, a chamber, and a complex, and map a tunnel network.
TV-PG | 04.25.2026
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