Hidden Beneath the Cities2026
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.
- Released
- 17. 7. 2026
- Genres
- Documentary
- Network
- National Geographic
- Status
- Returning Series
- Seasons
- 1 season, 10 episodes aired
- Certification
- TV-PG
- Country, language
- US · EN