Ключевые слова: ancient, architecture, blue, bright, building, center, city, colorful, day, douro, embankment, europe, hill, historic, historical, history, home, house, multicolored, old, oporto, outdoors, panorama, people, porto, portugal, portuguese, quayside, ribeira, ribeyra, river, sky, slums, summer, tourism, town, travel, trip, urban, view, wall, water,