Something inherently romantic speaks to our hearts when we see a castle looking out to the sea, from a high cliff among imposing coastal mountains. If you remove the hustle of a resort town around it, the place becomes infused with fantasy and magic, especially in the glow of a setting sun.

(The Swallow's Nest, read Wiki's article) is located close to Yalta and has been closed to general public after surviving a large earthquake in 1927 (the cliff has developed a crack beneath it). However in recent years it's been fully restored and now houses an Italian Restaurant.

Swallow's Nest was also featured in several Soviet films. It was used as the setting of Desyat Negrityat, the Soviet screen version of Agatha Christie's And Then There Were None.

Swallow's Nest is closer in style to German architectural follies, such as Neuschwanstein,
Babelsberg, and Stolzenfels.

http://en.wikipedia.org/wiki/Swallow%27s_Nest_(Crimea)