The fortifications of Xi'an, also known as Xi'an City Wall, in Xi'an, an ancient capital of China, represent one of the oldest, largest and best preserved Chinese city walls.
It was built under the rule of the Hongwu Emperor Zhu Yuanzhang as a military defense system.It exhibits the "complete features of the rampart architecture of feudal society".
The Xi'an City Wall is on the tentative list of UNESCO's World Heritage Site under the title "City Walls of the Ming and Qing Dynasties". Since 2008, it is also on the list of the State Administration of Cultural Heritage of the People's Republic of China.
Xi'an City Wall is located in the urban district of Xi'an City, which at one time was an imperial city during the periods of the Sui and Tang dynasties. It is situated at the end of the ancient Silk Road.
The Xi'an Wall is rectangular in shape and has a total length of 14 kilometres (8.7 mi), with almost all stretches subjected to some kind of restoration or rebuilding. Along the top of the wall is a walkway, which would typically take four hours to cover.
The wall is 12 metres (39 ft) in height with a width of 12-14 metres (39-46 ft) at the top and base width of 15-18 metres (49-59 ft). Ramparts are built at intervals of 120 metres (390 ft) , projecting from the main wall.