Ключевые слова: 25, abril, april, architecture, blue, bridge, building, city, cityscape, clouds, communication, engineering, europe, european, famous, gate, highway, iron, landmark, landscape, lisboa, lisbon, metal, panoramic, ponte, portugal, portuguese, railroad, red, river, road, salazar, sea, sky, steel, structure, suspension, tagus, tejo, tourism, traditional, traffic, transport, transportation, travel, trip, urban, view, water, waterfront,