Bergpark Wilhelmshöhe is a landscape park in Kassel, Germany. The park comprises an area of about 2.4 square kilometres (0.93 sq mi), stretching up to the Karlsberg mountain with the Hercules monument on the summit at 526.2 metres (1,726 ft).
The park is the largest European hillside park, and second largest park on a hill slope in the world. Construction of the Bergpark, or “mountain park”, began in 1696 at the behest of the Landgraves of Hesse-Kassel and took about 150 years. The park is open to the public today. Since 2013, it has been a UNESCO World Heritage Site.
Art historian Georg Dehio (1850–1932), inspirator of the modern discipline of historic preservation, described the park as “possibly the most grandiose combination of landscape and architecture that the Baroque dared anywhere” (“vielleicht das Grandioseste, was irgendwo der Barock in Verbindung von Architektur und Landschaft gewagt hat.”)