Ключевые слова: architecture, boat, building, city, cityscape, dawn, day, douro, europe, european, exterior, heritage, historic, house, landmark, life, light, lights, old, oldtown, oporto, orange, pier, porto, portugal, rabelo, reflection, ribeira, river, scenery, scenic, sightsee, sightseeing, street, sunset, tourism, town, travel, unesco, urban, water, watercourse, waterway, wine, world, yellow,