The Leopold Museum owns forty-four paintings by Egon Schiele, more than anywhere else, and one man bought nearly all of them before prices rose. Rudolf Leopold was a Viennese eye doctor who studied art history alongside medicine and bought his first Schiele in 1950, while still a student. Schiele sold for very little then, so a young man on a small income could keep buying, and he did for five decades. Schiele's self-portrait painted naked at twenty is close to life size, so you meet it at your own height.
He and his wife Elisabeth signed some five thousand works into a public foundation in 1994; the state paid about a quarter of what the collection had been valued at, and the family gave the rest. What you walk into is a plain white cube in the MuseumsQuartier — white walls, oak floors, daylight doing most of the work. Since Leopold's death the museum has settled claims from families whose pictures were taken under the Nazis and later ended up in his collection.