If you want to get to know Vienna we can for sure recommend a guided tour. On such a trip you will increase your knowledge about the area of interest, and you will get the chance to ask all the questions you have on your heart. There are basic tours available introducing you to the Austrian capital, with information on the most important sights of Vienna, the history of the city and a quite standard procedure.
For those interested you can also find evening tours, tours including a visit to Schönbrunn and other tours on foot, and some with car/bus. For more information on the big variety of different guided tours available in Vienna, take a look at this page: Viator