The Residenz in central Munich is the former royal palace of the Wittelsbach monarchs of Bavaria. The Residenz is the largest city palace in Germany and is today open to visitors for its architecture, room decorations, and displays from the former royal collections. The complex of buildings contains ten courtyards and displays 130 rooms. The three main parts are the Königsbau, the Alte Residenz and the Festsaalbau.