Ключевые слова: architecture, bridge, building, camden, canal, city, cityscape, coastline, color, delaware river, downtown, eastern united states, evening, freeway, highway, illuminated, landmark, metropolis, motion, night, no people, north america, outdoor, pennsylvania, philadelphia, purple, reflection, river, sea, sky, skyline, steel, strait, structure, sunset, suspension, suspension bridge, tourism, traffic, transport, transportation, travel, travel destination, twilight, united states, urban, urban skyline, usa, view, water,