Ключевые слова: area, background, bay, blue, bridge, bright, buildings, business, california, city, clear, construction, contrast, day, delta, development, east, east bay, environment, green, hayward, haze, horizon, houses, industrial, landscape, light, new, panoramic, polluted, pollution, residential, san francisco, san mateo, scenery, scenic, season, sky, smog, spring, streets, sun, sunny, town, trees, urban, water, winter,