Ключевые слова: architecture, attraction, boat, building, buildings, city, cityscape, culture, douro, dusk, europe, evening, heritage, hill, historic, historical, house, houses, landmark, lights, metropolis, oporto, place, port, porto, portugal, portuguese, rabelo, reflection, residential, river, sight, sights, site, skyline, tourism, tourist, town, traditional, transport, transportation, water, wine, world,