Ключевые слова: architecture, background, blur, building, business, cement, china, city, cityscape, clean, commercial, day, design, downtown, empty, environment, exterior, facade, floor, footpath, glass, green, ground, landscape, landscaping, leisure, modern, nature, nobody, office, outdoor, pavement, recreation, road, sidewalk, sky, square, stairs, steps, street, texture, tile, tree, urban, walkway,