Ключевые слова: ancient, ancient walls, architecture, art, asia, attraction, best of china, best preserved, brick, china, chinese, culture, defense, dynasty, east, famous, far east, fareast, fortified, fortress, han, heritage, historic, legacy, mandarin, monument, old, old town, old walls, shaanxi, summer, tang, tourism, traditional, travel, typical, unesco, visit china, wall, world heritage, xian,