First Pier of the Great Wall Review

The first pier in the world is located on the Silk Road, in the middle of the Hexi Corridor, which is the starting point of the west end of the Great Wall in the Ming Dynasty. An important part of Jiayuguan Guancheng is an arm of Jiayuguan Guancheng, which protects the heavy town of Hexi against foreign invasion and describes the vicissitudes of vicissitudes. How many heroes can sing and cry stories...