Ключевые слова: architecture, bay bridge, blue, bridge, building, busy, city life, cityscape, contemporary, crowded, dawn, dense, destination, dusk, evening, futuristic, green, hdr, high, icon, landmark, metropolis, modern, morning, night, orange, populated, progress, purple, red, reflection, rise, san francisco, skyline, structure, sunset, symbol, tall, tourism, travel, twilight, urban, vacation, water, yellow,