Ключевые слова: aerial, architecture, beautiful, blue hour, boat, bridge, building, city, cityscape, douro, downtown, europe, european, evening, global city, gold, illuminated, landmark, landscape, light, lighting, luminous, medieval, morning, night, old town, oporto, outdoors, panorama, panoramic, picturesque, porto, portugal, portuguese, reflection, reflections, ribeira, river, riverside, ship, skyline, tourism, town, travel, twilight, urban, view, water,