Standing places - Bring a scarf
by MishyM
A random tip is that if you go to see a performance in the State Opera house and will be buying a standing ticket, bring along a scarf or ribbon to tie in front of you to mark your place so others don't take it in the intermission.
Bicycle lanes
by Dabs
While the bicycle isn't nearly as popular in Vienna as some other European cities, it was nice to see dedicated bicycle lanes on the sidewalk, marked very clearly with a bicycle, and out of the street. Make sure if you are walking that you are walking on the pedestrian part of the sidewalk or you may find yourself flattened or at the very least cursed at!
I would love to see dedicated bike lanes in the US, we recently had a bike to work day and the ride to our office is filled with perils-car traffic, potholes, people opening their car doors. Perhaps if the price of gas keeps increasing you may see a push to create more bicycle friendly conditions.
take a stroll in Kärntner...
by DanielF
take a stroll in Kärntner Straße and the Graben to get a feel of the old city and watch the many tourists and street artists. I keep very good memories from my summers spent there as a student. It may be a conservative city, but Viennese do also know how to have fun.
11th district - Simmering
by pakistanibrain
The Gasometer used to be a processing facility for earth gas, but had been shut down a few decades ago. The buildings were just standing around empty for many years until a group of companies decided to bring them into use again. They adapted the buildings and now it is a residential complex with several hundred flats as well as a shopping center.
Simmering (that's how the 11th district is called) is a rather run-down district with the Gasometer beeing one of the rare highlights.
Classical concerts and opera dress code
by verliebtinwien
Although there is no formal dress code in the sense that you won't be let in without a tie, you will for sure get better service and experience less arrogance and grumpiness if you dress up a little. You'll find that the locals are generally nicely dressed, women in dresses/skirts and high heels, men in tuxedos, and not as casual as tourists. You are free to wear whatever you like, but often sneakers and jeans aren't looked well upon.