Ключевые слова: ancient, architecture, asia, asian, background, barrack, barrier, beautiful, beijing, blue, border, boundary, brick, china, chinese, construction, culture, famous, fort, fortification, great, greatwall, heritage, hill, historic, history, landmark, landscape, ming, mountain, mutianyu, old, oriental, outdoor, passage, protection, scenery, sky, spring, stone, structure, sunny, tourist, tower, travel, unesco, wall, watchtower, wonder, world,