Ars Aevi Sarajevo is a museum of contemporary art in Sarajevo. It was formed during the war as a "resistance of culture". It has approximately 130 works by renowned world artists including Michelangelo Pistoletto, Jannis Kounellis, Joseph Beuys, Braco Dimitrijevic and Joseph Kosuth. A new museum building, designed by Renzo Piano, is planned to be open by 2009.