Ключевые слова: aerial, asia, backdrop, background, blue, board, brick, building, business, city, cityscape, cloud, cloudscape, commercial, concrete, district, downtown, empty, exterior, footpath, glass, ground, indoors, interior, landmark, landscape, modern, nanjing, nobody, office, panorama, place, reflection, road, sky, skyline, skyscraper, space, stone, sunset, surface, tianjin, tower, urban, view, window,