Aired Tuesday 10 September,
7:10am - 8:00amon U&Yesterday
Underground Worlds
Series 1 Episode 4: Kingdom of SaltThe Wieliczka Salt mine in Poland, some 327 metres deep, where the voids left behind from excavating salt have been transformed into extraordinary spaces, carved by hand.
- Category
- Documentary
- Original air date
- 29/07/2019
Cast and crew
