Vienna has an extensive public transportation network(https://www.wien.info/en/travel-info/to-and-around/public-transport), including buses, trams, and metro trains. Tourists can purchase a Vienna PASS, offering free public transportation rides within Vienna, free entry to top attractions, museums and a Vienna guidebook. Taxi services are also available, but they can be expensive.
If you have more time in Vienna, visit the Sigmund Freud Museum, the Spanish Riding School, and enjoy the famous Sachertorte at the luxurious Hotel Sacher. If you have less time, you can skip the Kunsthistorisches Museum and skip the guided tour of the State Opera House to spend more time exploring other must-sees in Vienna.