Wieliczka is a historic town in southern Poland, situated within the Kraków metropolitan area in Lesser Poland Voivodeship since 1999. The town was initially founded in 1290 by Premislaus II of Poland. Nowadays, it is mostly known for the Wieliczka Salt Mine, declared a UNESCO World Heritage Site in 1978, and the historic old town core which was listed as one of National Polish Monuments in 1994. The population in 2019 was estimated at 23,395.