2 Season
20 Episode
Underground Worlds - Season 1 Episode 4 Kingdom of Salt
The Wieliczka Salt mine in Poland, some 327 meters deep, where the voids left behind from excavating salt have been transformed into extraordinary spaces, carved by hand.
- Year : 2022
- Country : United Kingdom
- Genre : Documentary
- Studio : U&Yesterday
- Keyword :
- Director :
- Cast :
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