Ключевые слова: ancient, architecture, beautiful, blue, building, buildings, center, city, cityscape, color, colorful, culture, day, douro, downtown, europe, european, exterior, facade, famous, heritage, historic, historical, history, house, houses, landmark, old, oporto, outdoor, people, port, porto, portugal, portuguese, red, ribeira, river, roof, sky, street, summer, tourism, town, traditional, travel, typical, unesco, urban, view,