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Hidden Beneath the Cities

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Hidden Beneath the Cities (2026)

April. 24,2026

TV-PG

| Documentary

Hidden Beneath the Cities

Uncovers the extraordinary worlds lying just below modern urban centers. Beneath the streets of stone, soil and concrete exist hidden realms shaped by survival, ritual and imagination. Uncovers the extraordinary worlds that exist beneath major urban centers, from the tombs and wartime shelters of Naples to the manmade Royston Cave in Hertfordshire, England.

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Hidden Beneath the Cities

2026 / TV-PG

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Seasons & Episode

Seasons 1 : 2026

10 Episode

Episode 1 - Underground Cities and Secret Chambers

April. 24,2026

Scientists uncover a city, a chamber, and a complex, and map a tunnel network.

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Episode 2 - Crystal Cathedrals and Buried Bunkers

April. 24,2026

Scientists uncover salt chambers, bunkers, old kingdoms, and mysterious caves.

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Episode 3 - Hidden Hypogeum and Lost Letters

May. 01,2026

Investigate a tomb in Naples that may contain a prince who inspired the legend of Dracula. Read the desperate letters of Jewish rebels hidden in an Israeli cave, tour a 6,000-year-old labyrinth in Malta, and see the oldest human burial in Africa.

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Episode 4 - Tunnels and Tombs

May. 01,2026

Crawl through a notorious brick-lined tunnel system in a historic Florida neighborhood. Open a window into the lives of elite Greek families in Naples, explore a three-story underground city in Iran, and find 2nd-century barracks buried in Rome.

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Episode 5 - Labyrinths and Legends

May. 08,2026

Explore a labyrinth built beneath Washington, D.C., by an eccentric entomologist. Admire a fresco-filled Roman mausoleum, spot intricate chambers carved into Colombia's volcanic rock, and see a sprawling network of hand-dug tunnels in Liverpool.

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Episode 6 - Subterranean Secrets and Forgotten Foundations

May. 08,2026

Walk the service tunnels hidden beneath Emperor Hadrian's lavish villa in Italy. Uncover a chilling mass grave from the Thirty Years' War in Germany, find the foundations of a Roman basilica in London, and glimpse Neolithic life on a Danish island.

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Episode 7 - Buried Battleship and Viking Victims

May. 15,2026

Examine a Revolutionary War-era ship found in the rubble of the World Trade Center. Uncover a mass grave of Viking settlers in Oxford, visit the resistance bunkers of the Warsaw Ghetto Uprising, and tour a necropolis full of burial jars in Corsica.

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Episode 8 - Bones Beneath and Coffins & Coins

May. 15,2026

Dig beneath the Treasury in Petra, Jordan, to find a sealed tomb containing 12 skeletons; unearth a hoard of coins hidden during a Scottish massacre, question the purpose of an empty grave in Peru, and inspect a Bronze Age leader's coffin in England.

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Episode 9 - Subterranean Seoul and Railway Revealed

May. 22,2026

Discover a massive underground chamber hiding under the Seoul subway. Visit a medieval knight's limestone tomb in Poland, examine Roman ruins beneath a church in England, and ponder the identity of a 10-million-year-old fossil in Los Angeles.

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Episode 10 - Secret School and Concealed Castle Cemetery

May. 22,2026

Visit a strange wood-lined tunnel beneath a Copenhagen train station. Locate one of North America's earliest schools for Black children in Virginia, excavate a warrior cemetery in Finland, and unearth a women-only burial plot beneath a Welsh castle.

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