Ключевые слова: arch, architecture, arrabida, bars, beams, bridge, building, canal, center, cityscape, concrete, construction, douro, editorial, europe, famous, fasten, fog, gaia, heritage, high, historical, history, industrial, lacing, landmark, landscape, mediterranean, night, old, oporto, outdoor, pattern, porto, portugal, portuguese, river, riverside, scene, shows, sky, skyline, structure, town, transportation, travel, unesco, urban, view, water,