Hohenzollern Castle
With over 350,000 visitors per year Hohenzollern castle is one of the most visited castles in Germany. The castle is privately owned by the House of Hohenzollern, with two-thirds belonging to the Brandenburg-Prussian branch, and the balance to the Swabian branch. Since 1952, the Princess Kira of Prussia Foundation has used the castle for an annual summer camp for children. Whenever Prince George and his family are staying at the castle, the Prussian flag flies over the castle.
Hohenwerfen Castle
Hohenwerfen Castle () is a medieval rock castle, situated on a precipice overlooking the Austrian market town of Werfen in the Salzach valley, approximately south of Salzburg. The fortress is surrounded by the Berchtesgaden Alps and the adjacent Tennen Mountains. Hohenwerfen is a "sister" of Hohensalzburg Fortress, both built by the Archbishops of Salzburg in the 11th century.