St. Stephen's Cathedral St. Stephen's Cathedral is a catholic cathedral located right next to Stephansplatz in the middle of the city. St. Stephen's Cathedral is a very beautiful Roman-Gothic building that is an interesting landmark. Spanish riding school If you want to see a spectacular show you should visit the Spanish Riding School where you can see the beautiful and famous lipizzan horses. It is an interesting attraction especially if you have an interest in horses and horse riding. Museum of Art History The Museum of Art History can be found at Maria-Theresien-Platz, 1010 and it is always worth a visit for those who are least interested in art. Must be seen Hundertwasserhaus Hundertwasserhaus is a municipal housing estate on the corner of Kegelgasse 34-38 and Löwengasse 41-43 in the district of Landstraße. It is designed by visionary thinker Friedensreich Hundertwasser and is unlike anything else you have ever seen. There is not a right angle to the house. Must be seen. Schönbrunn Castle The imperial palace, with its many side buildings and extensive gardens, is today considered the most important baroque facilities in Europe.