Ключевые слова: aon center, apartment, architecture, building exterior, built structure, chicago, chicago loop, city, city life, cityscape, color image, cook county illinois, day, downtown district, famous place, home ownership, horizontal, idyllic, illinois, lake, lake michigan, landscape, midwest usa, modern, monroe harbor, natural landmark, no people, north america, outdoors, skyscraper, summer, sunlight, sunny, tourism, tower, travel destinations, urban skyline, usa, waterfront,