Schloss Wilhelmshöhe - Credit: Wikimedia Commons
Schloss Wilhelmshöhe is a Neoclassical palace located in , a part of Kassel, Germany. It was built for Landgrave Wilhelm (William) IX of Hesse in the late 18th century. Emperor Wilhelm II made extensive use of it as a summer residence and personal retreat. Read more on Wikipedia
Source: en.wikipedia.org