Last day in Vienna. After checking out of our hotel we continued our walk around Old Vienna. On the way we stopped at a subway station to buy transportation to and from the airport; we are staying there tonight because we have an early flight on  Sunday morning. We found the best option for the three trips between the city and the airport. We got senior day passes that are valid on the full Vienna and area trains, trams and subway for  €6.80 each. Around noon we went to the airport and checked in at Austrian Airlines and then the hotel. After a shower and a nap we returned to the city for dinner and a ballet at the Vienna Opera House. The dancers displayed their skill and athletic ability as expected.  The star of the show was the building itself.  Susie is in green waving from our loge seats.  We had the front two with a wide railing to lean on during the performance; the seats were as good as it gets.