Pretty sure this is the castle they used in Van Helsing. I must go to it The greatest Gothic-style castle in Romania, Hunyad, aka. Corvinesti castle was built by the Anjou family on the site of a former Roman camp.
Schloss Drachenburg is a private villa in palace style constructed in the late century. It was completed in only two years on the Drachenfels hill in Königswinter, a German town on the Rhine near the city of Bonn