Ключевые слова: active, adult, amber, america, arch, background, backlighting, busy, city, city hall, crowd, downtown, entrance, evening, freedom, group, hall, heat, historic, joy, landmark, lens flare, life, lifestyle, light, men, moving, night, orange, pedestrian, penn, penn square, pennsylvania, people, philadelphia, rushhour, silhouette, square, street, sun, sunlight, sunrise, sunset, townhall, travel, urban, us, usa, walk, yellow,