The Wieliczka Salt Mine (Polish: Kopalnia soli Wieliczka), located in the town of Wieliczka in southern Poland, lies within the Kraków metropolitan area. The mine, built in the 13th century, produced table salt continuously until 2007, as one of the world's oldest salt mines still in operation. From its beginning and throughout its existence, the Royal mine was run by the Żupy krakowskie Salt Mines.