Wieliczka is a town in southern Poland in the Krakow metropolitan area. Located under the town of Wieliczka is the Wieliczka Salt Mine one of the world’s oldest operating salt mines (the oldest is at Bochnia, Poland, 20 kilometers from Wieliczka), which has been in operation since prehistoric times.
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The historic Salt Mine in Wieliczka is the only site in the world where mining has continued since the Middle Ages. The quotation comes from an the justification of entering the Wieliczka Salt Mine into UNESCO 1st World List of Cultural and Natural Heritage on 8th September, 1978 together with 11 other sites from all over the world.The beginnings of Wieliczka, one of the world’s most famous mines of the world, do reach the Middle Ages, when it assumed the name of Magnum Sal (Great Salt.)