Description:Take a tour of Swallow's Nest in Yalta, Ukraine – part of the World’s Greatest Attractions series by GeoBeats. Its appearance is that of a fairy-tale castle, looking off a cliff to the sea. The Swallow's Nest is an amazing building, both in its design and its location. The castle is situated 130 feet above the Black Sea, on Aurora Cliff. It was built by Baron Von Steingel in 1911 and was sold just three years later.(0:58)