Ключевые слова: attraction, boat, boats, buildings, city, cityscape, construction, culture, douro, europe, heritage, hill, historic, historical, houses, landmark, location, metropolis, oporto, outlook, perspective, place, port, porto, portugal, portuguese, rabelo, river, rowing, sailboat, sailing, scene, ship, ships, sight, sights, site, skyline, style, tourism, town, traditional, traffic, transport, transportation, unesco, view, vista, water, watercraft, wine, world,