Ключевые слова: ancient, architecture, bridge, building, city, cityscape, colorful, culture, district, douro, downtown, embankment, europe, european, hill, historic, historical, history, home, houses, landmark, medieval, old, oporto, panoramic, porto, portugal, portuguese, ribeira, river, romantic, sky, tile, tourism, town, travel, trip, urban, view, vintage, water,