Ключевые слова: ancient, architecture, blue, boat, bridge, building, buildings, city, cityscape, culture, day, dom luis bridge, douro, douro river, downtown, embankment, europe, european, famous, historic, historical, history, landmark, luis, luis i, old, oporto, ponte de dom luis, port, porto, portugal, portuguese, ribeira, river, sky, skyline, tourism, town, traditional, transport, transportation, travel, unesco, urban, view, water,