The Great Wall extends from Shanhaiguan in the east to Jiayuguan in the west, with a total length of more than 21,000 kilometers, of which the total length of the Ming Great Wall is 8,851.8 kilometers.It is not only a military defense project, but also the embodiment of the strong, unyielding, industrious and courageous spirit of the Chinese nation. The main construction of the Great Wall is the city wall, which is on average 6 to 7 meters high and 4 to 5 meters wide, built of huge bricks, stone strips and rammed earth, with beacon towers every few dozen meters on the top of the wall, used to transmit military information. |