Ключевые слова: ancient, architecture, attraction, building, castelo, castle, construction, culture, europe, fortification, fortress, heritage, hill, hilltop, historical, history, landmark, landscape, lisboa, lisbon, medieval, military, monument, moors, mouros, old, outdoor, portugal, portuguese, rock, sightseeing, sintra, stone, structure, tourism, tower, travel, turret, unesco, wall,