Kassel in northern Hesse combines sprawling, magnificently landscaped green spaces with a modern arts and culture scene. Located amidst the Kassel Mountains, Kassel in northern Hesse was once an important residential city. Ever since, Hercules, the city's landmark, has watched over Bergpark Wilhelmshöhe, which has been declared a World Heritage Site. Here, the Löwenburg (Lion's Castle), Baroque waterworks and Wilhelmshöhe Palace with its extensive picture gallery invite visitors on a journey into the magnificent past. Every five years since 1955, Kassel has hosted Documenta, one of the most important exhibitions of contemporary art. It always leaves new traces throughout the city, including the 7,000 oak trees planted by Joseph Beuys or the Himmelsstürmer at Kassel's main train station. In the city center, you'll find a wide range of shopping around Königsplatz with the classicist Museum Fridericianum. The interactive museum Grimmwelt commemorates the Brothers Grimm, who were enthusiastic Kassel residents.