Ключевые слова: air, architecture, asia, building, business, car, chimney, city, cityscape, construction, dirty, district, downtown, ecology, energy, environment, environmental, factory, fog, gas, global, haze, industrial, industry, landscape, light, metropolis, modern, nature, night, plant, pollution, power, road, scene, sky, skyline, skyscraper, smog, smoke, street, sunset, technology, tower, town, traffic, transportation, travel, urban, view,