The mine's attractions include dozens of statues, three chapels and an entire cathedral that has been carved out of the rock salt by the miners. The oldest sculptures are augmented by the new carvings by contemporary artists. About 1.2 million people visit the Wieliczka Salt Mine annually.
The Wieliczka salt mine reaches a depth of 327 metres (1,073 ft) and is over 287 kilometres (178 mi) long. The rock salt is naturally gray in various shades, resembling unpolished granite rather than the white or crystalline look that many visitors may expect. Even the crystals of the chandeliers are made from rock salt that has been dissolved and reconstituted to achieve a clear, glass-like appearance.
I couldn't post direct link but this one should feature photo on the left with small yellow fella in corner. Click it and it should bring you from sattelite view to "street view" inside the lobby. From there you can click -3, -2, -1 (where the scale should be) and visit three levels.
There is no map, no descriptions unfortunately (maybe they'll add those later) so it's easy to get lost. But it really is worth to wander around and see corridors from different periods, great chambers and church (-2) made of solid grey rock salt. Also there are some hidden cool things you may miss like head of dragon sticking out of wall in one small chamber.
Edited by Craven, 05 September 2013 - 05:50 PM.