Tarnowskie Góry-Bytom Undergrounds

The Tarnowskie Góry-Bytom Undergrounds are one of the largest systems of underground mine workings in Poland and Europe, a remnant of centuries-long silver ore extraction at the Fryderyk Mine within the Tarnowskie Góry Ridge. The underground workings of the former ore mine comprise a network of adits, galleries, excavations, and shafts beneath Tarnowskie Góry and its surrounding area. Together with the preserved technical infrastructure, they document the history of ore extraction from approximately the 15th century. By the decree of the President of the Republic of Poland on 14 April 2004, Tarnowskie Góry — the underground workings of the historic Silver Ore Mine and the Black Trout Adit, were entered on the list of Historic Monuments; in 2017 it was inscribed onto the UNESCO World Heritage List alongside the Historic Silver Mine in Tarnowskie Góry.