The permanent collection has more than 32,000 works of art. Most notable is the George and Mary Rockwell Asian Art collection. There are also a large number of works by American artists. These artist include Stuart Davis and Robert Rauschenberg. There is also many works by members of the Hudson River School and the American Impressionists to contemporary art. The Collection of Prints, Drawings, and Photographs has more than 15,000 works. These include works by Berenice Abbott, Robert Frank, Alfred Stieglitz, and Garry Winogrand. The fifth floor observation level holds the museum's large Asian collection. The permanent collection also includes works from Africa, pre-Columbian America, and Oceania. It range from ancient to contemporary societies. Its collection has two windows from Frank Lloyd Wright's Darwin D. Martin House.