The Great Wall, also known as the Ten Thousand Li Great Wall, is an ancient military defense fortification in China. It is a tall, sturdy, and continuous long wall used to limit the movement of enemy cavalry. The Great Wall is not a simple isolated city wall, but a defensive system consisting mainly of the city wall, combined with a large number of cities, barriers, pavilions, and landmarks. The history of the construction of the Great Wall can be traced back to the Western Zhou Dynasty, and the famous story Playing with the Beacon Fire to the Marquises that occurred in the capital city of Haojing (now Xi'an, Shaanxi) originated from this. During the Spring and Autumn period and the Warring States period, countries competed for hegemony and defended each other. The construction of the Great Wall entered its first peak, but at this time, the length of the construction was relatively short. After Qin conquered the six states and unified the country, Emperor Qin Shi Huang connected and repaired the Great Wall of the Warring States period, which was then known as the Great Wall for thousands of miles. The Ming Dynasty was the last dynasty to renovate the Great Wall, and most of the Great Wall seen by people was built during this time. The Great Wall resources are mainly distributed in 15 provinces, autonomous regions, and municipalities directly under the central government, including Hebei, Beijing, Tianjin, Shanxi, Shaanxi, Gansu, Inner Mongolia, Heilongjiang, Jilin, Liaoning, Shandong, Henan, Qinghai, Ningxia, and Xinjiang. The length within Hebei Province is over 2000 kilometers, while the length within Shaanxi Province is 1838 kilometers. According to the national survey of the Great Wall resources by the cultural relics and surveying department, the total length of the Ming Great Wall is 8851.8 kilometers, while the Qin, Han, and early Great Wall exceeded 10000 kilometers, with a total length of over 21000 kilometers. The existing cultural relics of the Great Wall include various types of relics such as the walls, trenches, boundary trenches, individual buildings, fortresses, and related facilities, totaling more than 43000 pieces/sectionsModel making software: 3ds Max 2014 Rendering software: vray3.60.03 for 3dmax2014 Plugins：MultiScatter WorkStation Version 1.2.0. 12 If you have any questions, write me: wjjmsn2020@gmail.com。