If you do not have a wonderful gown or a smart suit to wear, do not fret! The Vienna State Opera also sells standing tickets where the dress code is informal, however no shorts/sandals for men.
If you come early, you can get the best standing places.
The Vienna State Opera, in the Ring Boulevard of Vienna, was built in the late 19th century by many architects. Tourists can book a tour of the opera house and these tours are available in a vast number of different languages for all backgrounds and cultures to enjoy.