The Palaces and Parks of Potsdam and Berlin are an eclectic artistic achievement, with influences from Italy, England, France, Flanders, Paris and Dresden. Potsdam was the residence of the Prussian kings until 1918; its majestic buildings were built mainly during the reign of Frederick II the Great (1740–1786).After three extensions in 1991, 1992 and 1998, this WHS now consists of the following places: - Sanssouci, - New Palace, - Charlottenhof, - New Garden, - Babelsberg Park, - Sacrow estat