Xi 'an ancient city wall condensed the ancient working people's wisdom in our country, to study the history of Ming dynasty, military, and construction provides valuable data, such as xian Ming city wall is located in the central shaanxi xi 'an, 12 meters high wall, 8 12-14 meters, at the end of 15 to 18 meters wide, outline a closed rectangular, circumference of 13.74 kilometers, within the walls, people used to call the ancient city, covers an area of 11.32 square kilometers

圖片編號： 50819784
拍攝者： Zhangxiong