Ключевые слова: architecture, attraction, boat, bridge, building, city, cityscape, cruise, destination, douro, downtown, embankment, europe, european, excursion, famous, historic, historical, holiday, joao, landscape, maria, oporto, pia, port, porto, portugal, portuguese, river, sailboat, scene, scenic, ship, summer, sunlight, sunset, sunshine, top, tour, tourism, tourist, town, transport, transportation, travel, trip, vacation, vessel, view, water,