Wieliczka Salt Mine

The Wieliczka Salt Mine is a UNESCO World Heritage Site located in the town of Wieliczka, Poland. It is a salt mine that operated for over 700 years, from the 13th century to the 20th century. The mine is 9 levels deep, and the tour takes visitors down to the bottom level, where they can see the salt reserves. There are also a number of sculptures and other artworks carved into the salt walls by the miners over the years.