Ключевые слова: abstract, abstract backgrounds, architecture, backgrounds, balcony, blue, building exterior, built structure, business, chicago illinois, chicago loop, city, city life, cityscape, closeup, corporate business, curtain wall facade, day, downtown district, glass material, grid, high up, home ownership, horizontal, illinois, midwest usa, modern, no people, office, office building exterior, outdoors, pattern, residential building, scenics nature, skyscraper, tall high, textured, textured effect, tower, travel destinations, urban skyline, usa, window, wire mesh,