The postcard shows the castle, or Fürstenberg Haus, in Donaueschingen which was built when Prince Joseph Wilhelm Ernst moved into this new planned town from his castle in the hills above in the 18th century. It is a Baroque building set next to the Schlosspark and source of the River Danube. Its interior is lovely, full of 19th century paintings, tapestries and many original furnishings. The building is open as a museum, allowing visitors to wander around the various rooms. Guided tours are available.
Das Haus Fürstenberg Homepage