![Underground Wieliczka Salt Mine (13th century), one of the world's oldest salt mines, near Krakow, Poland Stock Photo - Alamy Underground Wieliczka Salt Mine (13th century), one of the world's oldest salt mines, near Krakow, Poland Stock Photo - Alamy](https://c8.alamy.com/comp/MP2KWP/underground-wieliczka-salt-mine-13th-century-one-of-the-worlds-oldest-salt-mines-near-krakow-poland-MP2KWP.jpg)
Underground Wieliczka Salt Mine (13th century), one of the world's oldest salt mines, near Krakow, Poland Stock Photo - Alamy
![Wieliczka Salt Mine (13th Century), One Of The World\'s Oldest Salt Mines. Stock Photo, Picture And Royalty Free Image. Image 38839248. Wieliczka Salt Mine (13th Century), One Of The World\'s Oldest Salt Mines. Stock Photo, Picture And Royalty Free Image. Image 38839248.](https://previews.123rf.com/images/kanuman/kanuman1504/kanuman150400271/38839248-wieliczka-salt-mine-13th-century-one-of-the-world-s-oldest-salt-mines-.jpg)
Wieliczka Salt Mine (13th Century), One Of The World\'s Oldest Salt Mines. Stock Photo, Picture And Royalty Free Image. Image 38839248.
![Underground Wieliczka Salt Mine (13th century), one of the world's oldest salt mines, near Krakow, Poland Stock Photo - Alamy Underground Wieliczka Salt Mine (13th century), one of the world's oldest salt mines, near Krakow, Poland Stock Photo - Alamy](https://c8.alamy.com/comp/MPA2G0/underground-wieliczka-salt-mine-13th-century-one-of-the-worlds-oldest-salt-mines-near-krakow-poland-MPA2G0.jpg)