Wieliczka Salt Mine
The Wieliczka Salt mine, located in the town of Wieliczka just at the outskirts of Krakow, dates bake to the 13 th century. The mine produced table salt continuously until 2007, as one of the world's oldest salt mine in operation.
A wooden staircase provides access to the mine's 64-metre (210-foot) level. A 3-kilometer (1.9-mile) tour features corridors, chapels, statues, and underground lake, 135 meters (443 ft) underground. An elevator (lift) returns visitors to the surface; the elevator holds 36 persons (nine per car) and takes some 30 seconds to make the trip. The Mine is one of the prime tourist attractions in Poland, registered on the UNESCO list and visited by close to two millions tourists every year.