Built in the English style during World War I, this was the palace of Crown Prince Wilhelm (1882-1951) and his wife Cecilia. Set in the Neuer Garten, it also played host to the historic Potsdam Conference attended by Stalin, Truman and Churchill in 1945. Inside the palace, you can visit both the Princess Royal's private apartments, including a bedchamber furnished in the style of a yacht cabin, and the conference and meeting rooms where the 1945 Potsdam Agreement was signed.