Ключевые слова: abstract, apartment, architecture, art, blackwhite, building, business, center, city, city landscapes, cityscape, construction, day, design, district, downtown, dutch, europe, exterior, facade, famous places, geometric, harbor, holland, house, landmark, line, living, mathematic, mathematical, modern, modern architecture, netherlands, office, outdoor, perspective, residential, rotterdam, shape, sky, skyscraper, structure, summer, tall, tower, town, unique buildings, urban, window,