Poland: Wieliczka Salt Mine

This deposit of rock salt in Wieliczka-Bochnia has been mined since the 13th century. Spread over nine levels, it has 300 km of galleries with works of art, altars, and statues sculpted in the salt, making a fascinating pilgrimage into the past of a major industrial undertaking. Seen on the multiview card is

1. The Weimar Chamber 2. The Warden sculptures in rock salt. 3. The Casimir the great chamber. 4. St Kinga's  Chapel. 

 Thanks to Ania.