Ключевые слова: america, beautiful, big, black, building exterior, buildings, built structure, business, california, center, city, cityscape, coit tower, copy space, district, downtown, dusk, finance, financial district, high, horizontal, house, office, office building, pyramid, san francisco, san francisco bay, scene, sf, shape, skyline, skyscraper, sunrise, sunset, transamerica pyramid, twilight, urban, us, usa, white,