Ключевые слова: ancient, architecture, boat, bridge, building, buildings, city, cityscape, colorful, day, district, douro, downtown, europe, european, famous, gaia, harbor, historic, historical, historical building, history, house, houses, iberia, iberian, landmark, landscape, medieval, monument, nova, old, old town, oporto, place, ponte dom luis, porto, porto cais de riberia, portugal, portuguese, ribeira, riberia district, rio douro, river, scene, scenery, scenic, skyline, summer,