Located 160 km southeast of Yumen Pass, Jiayu Pass marks the western end of the Ming Great Wall. Nearly 80 percent of the ...

Here there are also reinforcing walls built alongside the wall proper and beacon towers for transmitting ... Standing atop this tower, one can see the Great Wall winding its way along the contours ...

The complete route of the Great Wall was over 20,000 kilometers and had a complex defense system on the structure, including walls, fortresses, passes, and beacon towers, which have been preserved ...