Opera House, one of the most famous Opera Theaters in the world
Belvedere Palace (Amerling, Hausner, Hundertwasser, Klimt, Kokoscha, Romako, Schiele, Waldmüller, and some French impressionists too.)
Church of St Charles Borromeo
Secession
Imperial Palace (Hofburg), the residence of the Habsburg emperors
St. Stephen’s Cathedral
Stefansplatz
Schönbrunn Palace where the Empress Maria Theresa lived with her 16 children
Schönbrunn Garden
Donaukanal