Wieliczka Salt Mine, near Kracow, Poland, has many miner carved statues and friezes.
Deposited 15 million years ago, the salt is grey with granite texture. The mine has its own micro-climate, a constant temperature between 14-16C.
Commencing in the 13th century mining continued until 1996.
There are three routes, the tourist, (2 kilometres long) the miners and the pilgrims.