Goodness me - Austria? I have been close (Munich in Germany or the Dolomites in Italy) but never Austria... something for the list!
Although recently I did a transfer through Vienna airport because my original connecting flight to Hamburg was cancelled! I got to see all the wind turbines and how close they are to the airport, which was very exciting as I am a renewable energy developer in South Africa and our airports still want turbines to be very far away - haha!