Ключевые слова: abstract, aerial photography, architecture, background, big cities, building, business district, cbd, china, city, city squares, commercial buildings, downtown, finance, financial district, glass, ground, hangzhou, landmarks, landscape, light, metropolis, modern, office building, outdoor, overpass, panorama, perspective, qiantang river, river, road, skyline, skyscraper, street, travel, urban landscape, wharf, zhejiang,