- Concerts, weddings, and masses are celebrated 135 meters underground
- Sculpture of John Paul II made entirely from salt
- underground salt cavern
- A church made entirely from salt
One of the oldest mines in the world (900 years) includes almost 200 km of passages as well as more than 2,000 caverns. The world's biggest museum of mining is housed here 135 meters below the surface.
In medieval times salt was the equivalent of today's oil.
