Ключевые слова: allegheny, american, architecture, bridge, buildings, business, city, cityscape, downtown, financial district, highrise, infrastructure, landmark, landscape, lights, metropolis, night, office buildings, outdoor, pa, panorama, panoramic, pennsylvania, pittsburg, pittsburgh, pittsburgh cityscape, pittsburgh pa, pittsburgh pennsylvania, pittsburgh skyline, reflections, river, riverbank, riverfront, roberto clemente, scenery, scenic, sky, skyline, skyscrapers, steel city, tourism, towers, travel, twilight, urban, us, usa, view, water, waterfront,