An amazing "ice" castle called the Swallow's Nest Castle, Ukraine
Source: Reddit
Overlooking the Cape Ai-Todor of the Black Sea in Southern Ukraine stands this amazing "ice" castle called the Swallow's Nest. It kind of reminds you of the ice castle in the movie "Shark Boy and Lava Girl." This castle was built on top of a cliff (Aurora Cliff). It would be just a little scary to be in it even though it looks secure enough but if it happened to fall, it would fall hard. A wealthy oil merchant built it in 1911. Prior to that, there was a wooden cottage there called "The Castle of Love" that was built in 1895.