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: 7.0 (24 votes)
Episode average: 7.8 +0.8 vs IMDb
Seasons: 1
Status: Still airing
Streaming (US): Hulu · Disney+
Language: EN
Type: TV series

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Ratings refreshed Oct 3, 2026 · 1 season indexed

Seasons

Season 1 (2026)

7.80 avg 6 episodes Still airing 7.8 → 7.6

Season 1 episodes - IMDb ratings
#	Title	Rating	Votes
1	Underground Cities and Secret Chambers	7.8	10
2	Crystal Cathedrals and Buried Bunkers	7.9	12
3	Hidden Hypogeum and Lost Letters	7.8	10
4	Tunnels and Tombs	7.9	8
5	Labyrinths and Legends	7.8	5
6	Subterranean Secrets and Forgotten Foundations	7.6	6