Ключевые слова: 311 south wacker, america, architectural, architecture, blue sky, bridge, bridges, building, buildings, chicago, chicago river, city life, cityscape, cloud, clouds, cloudy blue sky, color, colour, day, daytime, downtown, exterior, facade, facades, glass, highrise, highrises, illinois, keith levit photography, mirror, outdoor, outdoors, outside, overpass, reflect, reflection, reflections, reflective surface, reflective surfaces, river, riverbank, rivers, riverside, sears tower, sky, skyline, skyscraper, skyscrapers, structure, sunny, sunshine, the willis tower, tower, towers, tree, trees, united states, united states of america, urban, usa, wall, walls, water, waters, window, windows,