Ключевые слова: aerial, afternoon, america, american, apartments, architecture, building, buildings, business, center, city, cityscape, clouds, day, daytime, district, downtown, exterior, famous, financial, hall, high rises, landmark, landscape, location, metropolis, metropolitan, modern, nice, northeast, office, offices, pa, pennsylvania, philadelphia, place, scene, scenery, scenic, sky, skyline, skyscraper, tourism, tower, towers, town, travel, urban, usa, view,