Yes Nanjing City Wall, including the walls of Miyagi, Imperial City, Capital City and Outer Guo Cheng in the Ming Dynasty, is the longest, largest and best preserved ancient city wall in the world. It still needs to be restored and has not been abandoned. Nanjing Ming City Wall was built in the 26th year of Yuan Dynasty 1366 and completed in the 26th year of Ming Hongwu 1393, which lasted for 28 years.