Vienna, Austria - May 28, 2015: Unidentified tourists by sightseeing of famous Upper Belvedere Palace. The Belvedere is a historic building complex in Vienna, Austria, consisting of two Baroque palaces the Upper (1717-1723), Lower Belvedere (1714-1716) and Gardens by Dominique Girard. Belvedere is one of the first public museums (1781) in the world