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.
Gutenberg Castle
Gutenberg Castle (German "Burg Gutenberg") is a preserved castle in the town of Balzers, Liechtenstein, the centre of the municipality of Balzers. Gutenberg is one of the five castles of the principality and one of two that have survived preserved until the present day. Unlike Vaduz Castle in Vaduz, Gutenberg Castle does not serve as a residence of the princely family of Liechtenstein and is open to the general public as a museum. The castle lies on a hill near the centre of Balzers and is accessible via a street and road known as "Burgweg".