Ключевые слова: aerial, america, architecture, blue, building, building exterior, business, center, city, city center, city landscape, city life, civil engineering, color image, color photography, construction, county, day, dc, design, downtown, downtown district, glass, glasses, growth, high, highrise, landscape, modern, no people, office building exterior, outdoors, reston, sky, skyscraper, steel, street, surface, tower, town, town center, travel, urban, us, usa, view, virginia, virginia us state, washington,