Mutianyu Great Wall is located in Huairou District, Beijing, 73 kilometers away from Beijing downtown area. It is one of the famous sections of China Great Wall. Mutianyu Great Wall was first built in the mid-6th century during the Northern Qi, making it older than the Badaling section. In 1569, the Mutianyu Great Wall was rebuilt and till today most parts of it are well preserved. The Mutianyu Great Wall has the largest construction scale and best quality among all sections of Great Wall.