vienna state opera (wiener staatsoper), famous opera house

wien wagner votivkirche votive vienna university undefined theresa stephen station staatsoper schwarzenberg schonbrunn schloss peterskirche peter parliament papyrus palais palace paintings opera national museum metro maria library kursalon kunsthistorisches kinsky karlsplatz karlskirche imperial hundertwasser hubner hofburg hall habsburg graben domkirche daun concert city church charles cathedral belvedere austria art albertina