The Stadtschloss, in English the Berlin City Palace, was a royal palace in the centre of Berlin. It was the principal residence of the Hohenzollern Kings of Prussia from 1701 to 1918 (the German Emperors from 1871 to 1918) and a museum following the fall of the German Empire in 1918.
Damaged by Allied bombing in World War II, although possible to repair at great expense, the palace was demolished in 1950 by the GDR authorities, despite West German protests. Following the reunification of Germany, it was decided to rebuild the Stadtschloss.
The new Castle will be named Humboldt Forum and will be rebuilt as a replica of the former Baroque building. In the meantime a big blue box, called HumboldtBox, will cover the empty space right beside the Berlin Cathedral. If you want to know more about the whole project, just visit the exhibition on the first floor, or if you just want to relax, the restaurant on the fifth floor provides you a 360° panoramic view over Berlin.