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

Created By
StatusReturning Series
Original NameHidden Beneath the Cities
First Air DateApril 24, 2026
Last Air DateMay 22, 2026
Seasons1
Episodes10
Episode Runtime 0min
LanguageEnglish
Original LanguageEnglish
Production CountriesUnited States of America, Canada
Production CompaniesNational GeographicShark Teeth Films
NetworksNational Geographic
Secret School and Concealed Castle Cemetery
S01E10

Secret School and Concealed Castle Cemetery

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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