The city wall of Xi’an is 12m high with a width of 18m at its base and a width of 15m at its top. The total perimeter is 13.74km. The city wall was built on the imperial city of the Sui and Tang Dynasties from the 7th to 11th year of the Hongwu Reign of the Ming Dynasty (1374 to 1378). This is the most famous city wall in Chinese history during the late Middle Ages and the old city wall most completely preserved in China.
Suggestions for travel: the best way to tour the old city wall is to rent a bicycle (single person or double persons). Route: south gate - west gate - north gate - east gate - south gate.