Badaling is the site of the most visited section of the Great Wall of China, approximately 50 miles (80 km) northwest of urban Beijing city in Yanqing County, which is within the Beijing municipality. The portion of the wall running through the site was built in 1505 during the Ming Dynasty, along with a military outpost reflecting the location's strategic importance. The highest point of Badaling is Beibalou (traditional Chinese: 北八樓), approximately 1,015 metres (3,330 ft) above sea level.