Vienna was not on my original itinerary for The Great European Adventure, but when I told people that I was visiting Prague and Budapest, a number of friends replied, “and you’re not going to Vienna?!” Prague, Vienna, and Budapest seem to be the quintessential trio of central European travel destinations, and who am I to argue with quintessential trios? Well, I’m so glad I added Vienna to my trip because I love art museums, and Vienna is full of them! When I visited, I went to 4 art museums in 3 days. 1. The Belvedere Palaces: Most importantly, I wanted to see that masterful Austrian painter whose works appeared so…