“The Architectural Archives of the University of Pennsylvania preserves the works of more than 400 designers from the 18th century to the present. The Architectural Archives gained its international reputation initially through the Louis I. Kahn Collection whose resources include all drawings, models, photographs, correspondence, and project files from Kahn’s office. Other major architects whose work is represented in the Architectural Archives include Alfred Bendiner, Cope and Stewardson, Paul Philippe Cret, Frank Miles Day, Wilson Eyre, Frank Furness, Edmund Gilchrist, Lawrence Halprin, Warren Powers Laird, Mitchell/Giurgola, John Nolen, Frank Lloyd Wright, and Zantzinger Borie and Medary. In addition to these American 19th and 20th-century architects, the Architectural Archives collects the work of several significant European architects”.