Underground Marvels Season 2 Episode 7 Italy's Subterranean Secret 2021
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An unprecedented landslide unveils a hidden world beneath a picturesque town in northern Italy, and now experts investigate this vast network of tunnels and passageways that stretch 300 feet underground to reveal the city's subterranean past.
- Released: 2021-09-16
- Runtime: 45 minutes
- Genre: Documentary
- Stars:
- Director:
