Sanssouci Palace, located in Potsdam, Germany, is a stunning Rococo masterpiece built by Frederick the Great as his summer retreat. This UNESCO World Heritage Site is renowned for its elegant architecture and beautifully terraced gardens. Visitors can explore the palace’s opulent interiors, including the grand Marble Hall and the intimate Voltaire Room, as well as stroll through the expansive Sanssouci Park, which features numerous temples, fountains, and sculptures.