Tourist attractions in Poland vary, from the mountains in the south to the sandy beaches in the north, with a trail of nearly every architectural style. The most visited city is Kraków, which was the former capital of Poland and serves as a relic of the Polish Golden Age and the Renaissance. Kraków also held royal coronations of most Polish kings and monarchs at Wawel, the nation's chief historical landmark. Among other notable sites in the country is Wrocław, one of the oldest cities in Poland which was a model for the founding of Kraków. Wrocław is famous for its dwarf statues, a large market square with two town halls, and the oldest Zoological Gardens with one of the world's largest number of animal species. The Polish capital Warsaw and its historical Old Town were entirely reconstructed after wartime destruction. Other cities attracting countless tourists include Gdańsk, Poznań, Lublin, Toruń as well as the site of the German Auschwitz concentration camp in Oświęcim. A notable highlight is the 13th-century Wieliczka Salt Mine with its labyrinthine tunnels, a subterranean lake and chapels carved by miners out of rock salt beneath the ground.