Ключевые слова: abstract, architecture, background, banking, building, business, chicago, city, cityscape, clouds, commerce, company, corporate, diagonal, downtown, finance, financial district, futuristic, geometric, glass, illinois, large, looking up, metropolis, metropolitan, modern, office building, outdoor, reflection, sky, skyline, skyscraper, skyward, tall, tower, united states, upward, urban, usa, windows,