Ключевые слова: ancient, architecture, beautiful, blue, boat, bridge, building, buildings, calem, cellar, center, city, cityscape, culture, douro, down, downtown, duoro, embankment, europe, famous, gaia, hill, historic, historical, history, house, luis, old, oporto, orange, panorama, port, porto, portugal, portuguese, red, ribeira, river, roof, ship, sky, tourism, town, travel, urban, view, water, white, wine, wine cellar,