Ключевые слова: aerial, america, american, apartments, architecture, buildings, business, center, chicago, city, cityscape, day, district, downtown, dusk, evening, financial, il, illinois, lake, landmark, landscape, location, metropolis, metropolitan, michigan, modern, new, observation deck, observatory, offices, place, river, roof, scene, scenery, scenic, sightseeing, sky, skyline, skyscrapers, street, sunset, tourism, towers, town, travel, twilight, urban, usa, view,