Ключевые слова: america, architecture, attraction, bay, beautiful, beauty, blue, bridge, cable, california, city, color, downtown, dusk, engineering, evening, famous, francisco, gate, golden, grass, green, historic, historical, landmark, light, metal, monument, nature, night, ocean, outdoor, panorama, panoramic, red, san, sea, sky, skyline, structure, sunrise, sunset, tourism, tower, transportation, travel, urban, usa, vacation,