Frederick the Great's famous summer palace, this rococo gem was designed by Georg Wenzeslaus von Knobelsdorff in 1747 and sits daintily above vine-draped terraces with the king's grave nearby. Admission is limited and by timed ticket only; book online to avoid wait times and/or disappointment. Otherwise, only city tours booked through the tourist office guarantee entry to the Schloss.
Schloss Sanssouci
Top choice in Potsdam