Ключевые слова: abstract, architecture, beautiful, blue, bridge, building, city, cityscape, culture, detail, dom, douro, eiffel, europe, european, famous, heritage, historic, historical, iron, landmark, light, luis, metal, old, oporto, panorama, panoramic, place, porto, portugal, river, scene, sky, tourism, town, traditional, travel, urban, water, wrought,