Ключевые слова: arch, architecture, armory, arriving, background, belm, blue, building, canyon, desert, empire, erosion, famous, fortress, heyday, historic, history, landmark, landscape, lisbon, monument, mountain, national, nature, old, park, piter, platform, portuguese, prison, railing, rock face, sandstone, sight, skirt, sky, tejo estuary, torre de belm, tourism, tourist, tower, travel, vacation,