Stock Photo: Vienna, Austria, Klosterneuburg, Sammlung ESSL Museum opened in 1999, designed by architect Heinz Tesar, and home to the largest private Austrian collection of modern art, possession of Mr. and Ms. Essl, exhibition Focus : Abstraktion, with paintings by S. Vienna, Austria, Klosterneuburg, Sammlung ESSL Museum opened in 1999, designed by architect Heinz Tesar, and home to the largest private Austrian collection of modern art, possession of Mr. and Ms. Essl, exhibition Focus : Abstraktion, with pa