The Museum for Modern Art in Frankfurt is located in a unique building (known as the Slice of Cake) close to the Römerberg square that was designed by Hans Hollein and opened in 1992. The remit of the museum is art from the 1960s to the present, and is quite a popular attraction within the city. The collections on display include works by Andy Warhol, Roy Lichtenstein, Walter De Maria, and Claes Oldenburg. Exhibitions incorporate paintings, photography, sculptures and video.