Ключевые слова: ancient, architecture, asia, asian, attraction, background, badaling, beautiful, beijing, border, brick, building, china, chinese, clouds, construction, culture, defense, destination, east, feats, fog, fort, great, greatwall, heritage, hike, hill, historic, history, landmark, landscape, monument, mountains, mutianyu, nature, old, oriental, outdoors, protection, sightseeing, stairs, stone, summer, tourism, tower, travel, wall,