1. Château de Chenonceau, France
2. Neuschwanstein, Germany
3. Miramare Castle, Trieste, Italy
4. Ashford Castle, Cong, Ireland (hehe~ ada nama aku pulak kat istana ni)
5. Prague Castle, Prague, Czech Republic
6. Peles Castle, Sinaia, Romania
7. Burg Hohenwerfen, Salzburg, Austria
8. Palace of Pena, Sintra , Portugal
9. Alcázar of Segovia, Segovia, Spain
10. Edinburgh Castle, Scotland, UK
11. Vajdahunyad Castle, Budapest, Hungary
12. The Castle of the Knights of St. John, Rhodes, Greece
Source http://www.bootsnall.com
p/s : Personal favourite, I like castles no.2 and 6, hehe~