1) Castle in the Harz 
[Harz] The Luisenburg was a small palace that existed from 1728 to 1945 near Blankenburg (Harz) in central Germany. It was built in 1728 on the Calviusberg hilltop above Blankenburg Castle as a belvedere for Duchess Christine Louise of Brunswick, and was named after her. The Luisenburg was a single-storey timber-framed building with an octa...