Even the Romans were mining salt in Torda, Transylvania. The current salt mine was opened in 1690 and it remained operational until 1932.
A while ago a recreational park was created in the mine with an investment of 7M eur for medicinal purposes. There’s entertainment, the air is clean and the temperature is constantly between 10-12 C°: ideal conditions for recovery from a number of illnesses. All areas are named after members of the Habsburg dynasty.
The 917 m long main corridor is the Franz Joseph gallery.