Poland is a central European country bordering seven other nations. Among its notable features are its lush forests, rivers, and majestic mountains. Its capital, Warsaw, is both ancient and modern, having gone through one of the most impressive post-World War II restorations. Poland has 14 UNESCO World Heritage Sites, and its urban centers buzz with culture and art. Major tourist attractions include Wieliczka Salt Mine, Warsaw Old Market Place, the Crooked Forest outside of the town of Gryfino, and Wawel Royal Castle in Kraków. A sobering view at history can be had at the Auschwitz I and the Auschwitz II–Birkenau concentration camps.