Hidden Beneath the Cities

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 centres, from the tombs and wartime shelters of Naples to the manmade Royston Cave in Hertfordshire, England.

Show Info

Network: United States National Geographic (2026 - now)
Status: To Be Determined
Show Type: Documentary

Official site: www.nationalgeographic.com

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Previous Episode

Secret School and Concealed Castle Cemetery

Episode 1x10; 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.

Previous Episodes

Episode NameAirdateTrailer
1x10: Secret School and Concealed Castle CemeteryMay 22, 2026
1x09: Subterranean Seoul and Railway RevealedMay 22, 2026
1x08: Bones Beneath and Coffins & CoinsMay 15, 2026
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