1. The Potala Palace: Tibet’s greatest monumental structure
3. Predjamski Castle: Integrated in a Cave
4. Neuschwanstein Castle: the Classic Fairytale’s Castle
5. Matsumoto Castle: Japan’s most fascinating castle
6. Hunyad Castle: were Dracula was held prisoner
7. Malbork Castle: World’s Largest Brick Gothic Castle
8. Palacio da Pena: Oldest Palace inspired by European Romanticism
9. Löwenburg Castle: The Disneyland of the 18th century
10. Prague Castle: World’s Largest Ancient Castle
sumber: http://www.sayakasihtahu.com/2010/04/10-istana-paling-megah-di-dunia.html