Since World War I, it has served as a mining museum, known for its long wooden slides between levels.
[1] Early mining was done by hand and extracted salt rock crystals as a solid.
After several weeks of absorbing salt from the walls, the water was pumped out to a processing plant in Hallein.
[1] There has been scientific research which used ancient human feces found in the older tunnels to determine how resources were shared between cultures.
[5] Visitors straddle two wooden rails and slide quickly down to the lower level of the mine.