I came across this travel tip today for saving money in Vienna. However, I cannot check it out because when I go to the site below, I only get the Hungarian version and there is no link to change it to English. I tried changing the country to the UK and the US, but it did not help.
If you fly on Austrian Airline, you can use your boarding card to get massively reduced or free entrance to Viennese attractions and cultural institutions such as the Kunsthistoriches Museum, Leopold Museum, Mozarthaus Wien, the U4 Discotheque and more. They’ve also added free entry to the Wine Museum Burgenland. For details, log onto www.aua.com and click on “All about the flight”.