7. Dracula's Castle

Daniel Mihailescu/AFP/Getty Images
Visitors to Bran Castle look from the inside the castle into its interior courtyard.

­­Thanks to visits paid by the infamous Vlad Tepes (better known as Vlad the Impaler, or Count Dracula), Bran Castle -- built on 20 acres of a mountaintop in Brasov, Romania -- became a museum in the 1980s. In 2009, it will become available on the market. There's a catch, though -- the castle's current owner, Archduke Dominic Habsburg, is being quite selective about the person to whom he sells it [source: AP]. The asking price is projected to be $140 million [source: Forbes]. 

The castle was built in the late 14th century as a fortress to ward off invading Turks [source: Bran Castle Museum]. The castle boasts 57 rooms, 17 of which are bedrooms, decorated with handcrafted Old World antiques and furniture [source: Concierge]. The property does have its drawbacks, however. There are the 450,000 tourists that visit the castle each year to consider: One may assume it could take a little while before word got out that it was no longer open for visitors. Plus, the castle has no central heat and gets quite cold. But you'd get to live in the same place where Dracula stayed, which would be pretty cool. 

If you want to get your hands on the next house, you have to be a member of a billionaires-only club.