Ключевые слова: america, architecture, brenal, buildings, ca, california, city, cityscape, cost, dark, dawn, downtown, dusk, financial, francisco, hill, houses, landmark, living, metropolis, modern, night, office, property, real estate, residential, san, san francisco, sf, skyline, skyscraper, sun, sunlight, sunrise, sunset, travel, twilght, united states, urban, usa,