The Great Wall
Constructed from the 3rd century BC to the 17th century, the Great Wall extends more than 21,000 kilometers. This includes about 8,800 km constructed during the Ming Dynasty (1368-1644), in 15 provincial-level administrative regions in North China. This national defense infrastructure also reflects exchanges between agricultural and nomadic civilizations in ancient China.
In 2019, on Jiayu Pass in Gansu province, the westernmost Ming section of the Great Wall, Xi called for sound efforts to preserve the Great Wall so as to promote the ethos of the Chinese nation.