The Old City Wall in Xi'an was built in 1374 A .D on the basis of the city of Chang'an in the Tang Dynasty. They are 11.9kilometres in girth with the top widths of 12 to 14 meters. They are one of China 's most historically—known city wall buildings remaining from the later stage of the Middle Ages. They are built of grey bricks and kept intact. The gate tower built over each of the four city gates and painted in dark green, which looks lofty and magnificent and forms a tight defense engineering system.

Other tourist attractions in Xi'an:

The Terra Cotta Warriors and Horses The Big Wild Goose Pagoda Xi'an Old City Wall The Bell Tower Huaqing Hot Spring Banpo Village Museum Shanxi History Museum Forest of Steles The Great Mosque Emperor Qinshihuang's Mausoleum