Photo: C messier · CC BY-SA 4.0 · via Wikimedia Commons
Catacombs & Underground · Poland
Wieliczka Salt Mine
The open question
Built, used, sealed and forgotten. Why does that keep happening with what's under our cities?
On the record
The Wieliczka Salt Mine is a salt mine in the town of Wieliczka, near Kraków in southern Poland. The Tourist Route consists of the first 3 levels of the mine. The Wieliczka salt mine, excavated from the 13th century, produced table salt continuously until 1996, as one of the world's oldest operating salt mines.
- Year
- 1996
- Kind
- tunnels

