Ключевые слова: architecture, blue, building, building exterior, built structure, business, capital, castellana, city, cityscape, cloud sky, district, downtown, downtown district, europe, facade, financial, futuristic, glass, landmark, madrid, modern, no people, office, office building, outdoors, paseo de la castellana, reflection, salamanca, salamanca district, sky, skyscraper, spain, spanish, street, urban, urban scene, window,