Ambras Castle (Schloss Ambras) in Innsbruck offers an intriguing Chamber of Art and Wonders. One exhibit is a portrait of Count Vlad III Dracul Tzepesch. He is considered the inspiration for Dracula, a novel by Bram Stoker. [German]
Another gem is the Portrait Gallery on the History of Austria from 1400 to 1800. Based on 250 paintings you get to know the most important members of the Habsburg family.