Much of Penn's architecture was designed by the Cope and Stewardson firm (same architects who designed Princeton University and a large part of Washington University in St. Louis) known for having combined the Gothic architecture of the University of Oxford and University of Cambridge with the local landscape to establish the Collegiate Gothic style. The present core campus covers over in a contiguous area of West Philadelphia's University City section, whereas the older heart of the campus comprises the University of Pennsylvania Campus Historic District. All of Penn's schools and most of its research institutes are located on this campus. The surrounding neighborhood includes several restaurants, bars, a large upscale grocery store, and movie theater on the western edge of campus. Penn's core campus borders Drexel University and is a few blocks from the University of the Sciences in Philadelphia and The Restaurant School at Walnut Hill College.