Cecilianhof Palace, Potsdam, built 1914-1917, in the style of an English Tudor mansion. The last palace built by the Hohenzollerns.
Cecilianhof Palace was the site of the Potsdam Conference, where discussions were held and decisions were made about post WWII Europe and Asia by Stalin (USSR), Churchill (UK) and Truman (USA). It was occupied by the Soviets during the Cold War partition of Germany.