An eerie world where everything has been carved from salt blocks, the Wieliczka Salt Mine is made up of a labyrinth of tunnels, the deepest of which lies 1,075 feet (327 meters) underground. The ancient UNESCO World Heritage site is a major part of Poland’s salt mining history, one of the country’s most popular attractions, and one of the world’s oldest salt mines, having produced table salt from the 13th century until 2007.
Three of the mine’s nine levels are open to visitors. Explore these upper areas and see underground lakes, pits and chambers that have been made into detailed chapels, and an array of statues and monuments, all carved from salt. The mine’s claim to fame is its ornate Chapel of St. Kinga, made entirely of salt—from the chandeliers to the altarpieces—over the course of 30 years.