Ключевые слова: america, architecture, background, bay, bay area, blue, buildings, built, business, ca, california, center, city, cityscape, district, downtown, high angle view, highrise, hills, landmark, landscape, modern, mountain, mountain view, nature, offices, outdoors, perspective, residential, san francisco, san francisco bay, scenic, sights, sky, skyline, skyscraper, states, structure, tall, tower, town, towns, travel, trees, twin, urban, us, usa, view, workplace,