The University of Pennsylvania campus covers over 269 acres (~1 km²) in a contiguous area of West Philadelphia's University City district. All of Penn's schools, including the law school, and most of its research institutes are located on this campus. Much of Penn's architecture was designed by the architecture firm of Cope & Stewardson, whose principal architects combined the Gothic architecture of the University of Oxford and the University of Cambridge with the local landscape to establish the Collegiate Gothic style.