Ключевые слова: ancient, architecture, blue, boat, bridge, building, city, cityscape, construction, douro, duoro, dusk, europe, european, evening, famous, gaia, hill, historic, historical, history, houses, illuminated, landmark, luis, night, old, oporto, panorama, ponte, port, porto, portugal, portuguese, reflection, river, romantic, sky, tourism, town, transportation, travel, twilight, urban, view, water, wine,