Ключевые слова: architecture, building, building exterior, castle, colorful, colourful, europe, european, exterior, famous, famous landmark, famous place, fortress, heritage, historical building, history, landmark, lisboa, lisbon, lisbon district, moorish, national, national palace, palace, palace of pena, palacio da pena, park, pena, pena castle, pena national palace, pena palace, pena palace portugal architecture background, portugal, portugal architecture, portugal europe, portugese, portuguese, portuguese culture, royal, sintra, skyline, tourism, tower, travel destinations, unesco, unesco world heritage site, view, world heritage site, yellow,