Go see the Lippinzanner horses. You can watch them rehearse for a fraction of what it costs to see the show. The rehearsal show is very good. Take a tour of St. Sthephens cathedral and the catacombs beneath. Go to the top of the cathedral for a spectacular view. Go to the amusement park just across the river, and ride the ferris wheel made famous in the Orson Welles film "The Third Man." If you haven't already seen this classic film, rent it before you go. It is set in Vienna. Have some sacher torte at the Hotel Sacher, located just behind the opera. Take a stroll down the ring strasse and window shop; you'll see just about every exotic car dealership known to man, including Ferrari, Lamborghini, Lotus, Aston Martin, just to name a few. There are also many other interesting high end shops to stroll past. Just stroll through the city and admire the incredible architecture. If you are lucky, you may be able to catch a performance of the Vienna Boys choir. If you do have the chance to see them, do not miss it. They are amazing. If you are into it, go to the opera; it is among the best in the world. If this interests you, you may want to go online and order tickets well in advance as they are often sold out well in advance of the shows. Have at least one meal at Figlmuller, located just near St. Stephensplatz. They make the best wiener schnitzel and tafel spitz. For more details, do a search for Vienna in the Flyer Talk dining section. Try the Mozart chocolate balls, they are quite tasty. Take a day trip to Schoenburg palace and take a tour of it; simply awesome. If you are feeling ambitious, you can take a day trip to Bratislava, Slovakia. It is about an hour and a half by train each way. You can easily see the highlights of Bratislava on foot in an afternoon. Have dinner in Bratislava, then come back to Vienna. Prices are more inexpensive in Bratislava than anywhere else I've ever been on the planet. You can eat in a luxurious restaurant, dinner for 2 with appetizers, drinks, the whole nine yards including tip for less than $20 US total. Feel free to e-mail me if you have any additional questions. Have a great trip. I can't wait to return to Vienna, it is one of my favorite cities.