Schloss Charlottenburg was the favourite summer residence of Queen Sophie-Charlotte, wife of Friedrich I. In the Altes Schloss, don't miss the Porcelain Room, the chapel (1706) and the former apartments of Friedrich Wilhelm IV (note the Crown Prince's tableware). Also interesting is the Neuer Flügel (new wing) with its Golden Gallery, its collection of 18C French paintings (including remarkable works by Watteau) and the bedchamber of Queen Louise in the winter apartments.