Badaling Great Wall is situated in Yanqing County, over 70 kilometres (43 miles) north of Beijing. It is the most well-preserved section of the Great Wall, built during the Ming Dynasty (1368-1644)
The Great wall originally functioned as a fortification. As early as the Qin Dynasty (221BC-206BC), Qinshihuang, the first emperor of Qin Dynasty unified the whole nation and began to build the Great Wall to protect China's borders from the intrusion of the northern nomadic tribes. Most parts of the preserved Badaling Great Wall were built and reinforced during the Ming Dynasty to defend the capital against the intrusion of these Mongolian people.
Great wall of China at Badalin