Swallow's Nest castle, Ukraine Swallow's Nest castle is located in Ukraine. This is the most beautiful castle in the world. Nest castle was built between 1911 and 1912, on top of 40-meter (130 ft) high Aurora Cliff.
The Swallow’s Nest is a decorative castle near Yalta on the Crimean peninsula in southern Ukraine. It was built between 1911 and 1912 in Gaspra, on top of 40-metre (130 ft) high Aurora Cliff, to a Neo-Gothic design by the Russian architect Leonid Sherwood.