I have been to Vienna X times and the main reason was always for pleasure of shopping. I have actually only once-twice been on sight seeing and I would say I don't know Vienna that well actually. (shame!) Thid say trip made before the school year was to discover some new places around Vienna that I had no clue of. Thanks to google and research, I found some great places to spend the day with. We have walked all the day and was a great experience! See some hidden gems of Vienna on photos: