Ключевые слова: aerial, architecture, blue, bridge, building exterior, built structure, chicago, city, city life, cityscape, contemporary, district, downtown, financial district, horizontal, illinois, illuminated, midtown, midwest, office, office building, outdoors, reflection, residential district, river, sears tower, sky, skyline, skyscraper, street, sunset, travel destinations, twilight, urban, usa, waterfront, willis tower,