Suspended black staircases feature in one of these buildings designed by Zaha Hadid which was built on the site of a military barracks. The Quadracci Pavilion was designed by Santiago Calatrava for one of these buildings in Milwaukee. A skylight (10[1])shaped like a metal flower (-5[1])tops one of these buildings designed by Frank Gehry, (-5[1])which has flowers in a 40-foot-tall (10[2])puppy shape outside it. (10[1])A helical ramp surrounds an open (10[1])atrium (10[1])in (10[1])one of these buildings (-5[1])that its architect (10[1])called (10[1])an “inverted ziggurat.” François Mitterand commissioned I. M. Pei to design a (10[1])glass-and-metal (10[1])structure for one of these buildings in Paris. (10[1])For 10 points, what kinds of buildings include the Guggenheim and the Louvre? ■END■