to New York after graduating art school and transgressed from pop artist to art icon. The nation experienced deep and radical cultural change in the 1960s and Warhol's art was aligned with the movement. Carnegie Museum of Art When Andrew Carnegie envisioned a museum collection consisting of the "Old Masters of tomorrow", the Carnegie Museum of Art became, arguably, the first museum of modern art in the United States. Founded in 1895, today it continues showcasing contemporary art by staging the Carnegie International exhibition every few years. Numerous works from the International exhibitions have been acquired for the museums' permanent collection including Winslow Homer's The Wreck (1896) and James A. McNeill Whistler's Arrangement in Black: Portrait of Señor Pablo de Sarasate (1884). The marble Hall of Sculpture replicates the interior of the Parthenon. The Hall of Architecture contains the largest collection of plaster casts of architectural masterpieces in America and one of the three largest in the world. Opened in 1974, the Sarah Scaife Galleries Annex, was designed by Edward Larrabee Barnes and Associates. The Sarah Scaife Foundation gift nearly doubled the exhibition square footage. The modernist addition was designed to not compete with the existing building. "Trustee James L. Winokur says of architect Edward Larrabee Barnes, "He kept the old building out front. He was not terribly concerned about getting credit, just concerned about doing the job right, and he did do it right." The Heinz Architectural Center, opened as part of the museum in 1993, is dedicated to the collection, study, and exhibition of architectural drawings and models. In 2001 the museum acquired the archive of African-American photographer Charles "Teenie" Harris, consisting of approximately 80,000 photographic negatives spanning from the 1930s to the 1970s. Many of these images have been cataloged and digitized and are available online via the Carnegie Museum of Art Collections Search. The museum's permanent collection includes European and American decorative arts from the late seventeenth century to the present, works on paper, paintings, prints (notably Japanese prints), sculptures and installations. Carnegie Museum of Natural History From the holotype of Diplodocus carnegii to the most complete Tyrannosaurus rex known to date and Anzu wyliei, a recently described oviraptorosaur, the Carnegie Museum of Natural History displays 230 dinosaur fossils. Other exhibits include Hillman Hall of Minerals and Gems, Alcoa Foundation Hall of American Indians, Polar World: Wyckoff Hall of Arctic Life, Walton Hall of Ancient Egypt,