Hidden Beneath the Cities (2026)

Documentary · History

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.

IMDb rating: 7.1 (18 votes)
Seasons: 1
Streaming (US): Disney+ · Hulu · fuboTV · YouTube TV · National Geographic · Spectrum On Demand
Language: EN
Type: TV series

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Ratings refreshed Aug 19, 2026 · 1 season indexed

Seasons

Season 1 (2026)

7.58 avg 4 episodes 7.3 → 7.8

Season 1 episodes - IMDb ratings
#	Title	Rating	Votes
1	Underground Cities and Secret Chambers	7.3	7
2	Crystal Cathedrals and Buried Bunkers	7.8	8
3	Hidden Hypogeum and Lost Letters	7.4	7
4	Tunnels and Tombs	7.8	6