Jiayuguan, which everyone should be familiar with, is the starting point of the western section of the Ming Great Wall, located in Gansu Province. Historically, Jiayuguan was called "Hexi Throat". It used to be the only place on the Silk Road, which was of great economic and military significance to our country.
Moreover, traces of ancient battlefields can be found here. "The desert is lonely and the long river sets the yen" is the scene here. The whole Jiayuguan Pass is "back-shaped", with constant observation points, which is very spectacular.
Shanhaiguan is also familiar to everyone. It is the starting point of the eastern section of the Great Wall in the Ming Dynasty, facing Jiayuguan, one east and one west. Shanhaiguan is called "the first pass in the world". Because Shanhaiguan is an important place to protect the capital, the Qing army was buried in the Central Plains.
In addition to the main building, Shanhaiguan has other buildings such as the Arrow Tower. It is the most complete military protection system of the Great Wall so far, which is of great help to historical research. Now it has become an important tourist attraction.
Jianmenguan is located in Sichuan Province, which was also mentioned by Li Bai in Shu Dao Nan. Because the road is steep, it is an important checkpoint in Sichuan.
Niangziguan was built in the Ming Dynasty. According to legend, it was named Niangziguan because there was a princess stationed here before. It played an important role in defending Shanxi and Hebei, and it is still an important transportation hub.
Therefore, it can be seen that the ancient Xiongguan was actually guarded because of its geographical location. Although they have no previous function now, they are still playing the role of tourist attractions.