Speaking of the Great Wall, everyone may be too proud to know what to do. The Great Wall is not as simple as that great building. It is a miracle created by ancient oriental civilization and a symbol of the indomitable spirit of the Chinese nation. The Great Wall, known as one of the seven wonders of the world in the Middle Ages, spans Wan Li and winds in the land of northern China. The Great Wall is the greatest architectural project in the history of human civilization. Built in the Spring and Autumn Period and the Warring States Period more than 2,000 years ago, especially after the Qin Dynasty unified China, it was built in Wanli. Since then, the Great Wall has been built in all dynasties. However, in the Han and Ming dynasties, the Great Wall was built for thousands of years, with numerous projects and great momentum, which can be called a miracle of the world. However, historical vicissitudes have changed greatly, and the Great Wall has been damaged by wind and rain. Now the Ming Great Wall is the best preserved one. The Great Wall starts from Hushan, Liaoning, and passes through Hebei, Tianjin, Beijing, Shanxi, Inner Mongolia, Shaanxi, Ningxia, Gansu and Qinghai. From east to west, it ends in Jiayuguan, Gansu, with a total length of 885 1.8 km. Wan Li is not long, but the Great Wall always spreads among mountains, so it is actually relatively difficult to visit. It is necessary for tourists to choose that section of the Great Wall to feel the beauty of the Great Wall. Maybe we are familiar with Badaling, Shanhaiguan, Jinshanling and Juyongguan, but if you have been to Beitai in Yulin Town, you may change your mind. Zhenbeitai, built at 1607, is an observation station built by Tu Zongjun, the mayor of Yulin Town, to protect the trade of Hongshan Horse Market. The platform is square, with four floors, brickwork outside and rammed earth inside, with a big bottom and a small top, and it is gathered layer by layer, with a total area of nearly 5,000 square meters. Located at the top of Hongshan Mountain, 4 kilometers north of Yulin City, Shaanxi Province. It is one of the most magnificent buildings in the ruins of the Great Wall in the Ming Dynasty. Known as one of the three wonders of the Great Wall in China (Shanhaiguan in the east, Zhenbeitai in the middle and Jiayuguan in the west), the Great Wall in Wan Li ranks first. Zhenbeitai is in danger, controlling the north and south throats such as giant locks and border crossings. It is one of the largest existing fortresses along the ancient Great Wall and an important part of the Great Wall. There is a poem that says, "The Great Wall of Wan Li, a town with hard spines, is a northern platform, which will last forever.". The total height of the fourth floor of Beitai Town is more than 30 meters, the length of the abutment is 82 meters north, 76 meters south, 64 meters east and west, and the bottom is 10.7 meters. There is a brick and wood viewing pavilion at the top of the fourth floor of the platform, which collapsed in the late Qing Dynasty. Each floor of Zhenbeitai is a brick structure, and the edge of each floor is built with an observation port and a shooting port. On the east side of Zhenbeitai, there is a "Miyagi" built at the same time, with a circumference of 668 meters and an area of about 20,000 square meters. This is a city where Mongolian and China officials pay tribute and negotiate trade. Kuan Miyagi, also known as Yima City, is a place where agricultural products and silk products in the ancient Central Plains exchanged horses with nomadic people in the north. The city is connected with Zhenbeitai, forming a complete Yulin Great Wall architectural system. 800 meters southwest of Taiwan Province, there is a relic of Yima City in Ming Dynasty, covering an area of about 65,000 square meters. It is a city where Mongolian and Han people trade freely, and it is a historical witness of the harmonious coexistence of Mongolian and Han nationalities. The inscription "Xiang Ming" in the south of Zhenbeitai means "Heart to Daming", and the inscription "Zhenbei" in the north is self-evident-restraining the north. Zhenbeitai has been integrated with Yulin City. Going to Zhenbeitai, surprisingly, besides the towering Zhenbeitai, there are two old elms, which are said to be as old as Zhenbeitai. Today, it is difficult to find traces of elms in Yulin, and these two elms have become the witness of Yulin's history. In the sixth year of Yongle in Ming Dynasty (1408), Hongshan (Xiongshixia) built Yulin Village, and the name of Yulin began to appear in history. Because the local soil is especially suitable for planting elms and willows, it is named. When you climb the north platform of the town and look far away, you may feel its vicissitudes, grandeur, heroism and blood; Or "the old road and the thin horse in the west wind" crashed. Yulin City has become a modern city with lush high-rise buildings, while the desert yellow sand in the north is endless, with strong contrast and myriad thoughts. Standing on the stage, it seems that I am the only one between heaven and earth. Note that the winding ruins of the Great Wall are a monument of this nation. Looking at the scenery from afar is the great rivers and mountains of the motherland, and looking back at the prosperity of the city is today's grand scene. And the only thing you feel on this cusp comes from ancient times, and the unstoppable spirit of awe arises spontaneously. Among the hundreds of passes of the Great Wall, Zhenbeitai is neither the largest nor the highest. Perhaps this is why it can be independent of others and become one of the three wonders of the Great Wall. Guan Zhen Beitai has to say Hongshixia, because the existence of Hongshixia makes Zhenbeitai look grand and vicissitudes, and the story of Zhenbeitai has been passed down to this day. Hongshixia is located at the west of Zhenbeitai 1 km, where Yulin River, a tributary of Wuding River, meets the Great Wall of Wan Li. Between Zhenbeitai and Hongshixia, it is the national trunk highway from Yulin to Dongsheng in Inner Mongolia. The Yulin River flows from the north, splitting the Hongshan like a lightning bolt, forming a canyon called "one of the eight scenic spots in Yulin". The canyon is about 350 meters long, east-west, steep and majestic. In the canyon, the Yuxi River is swift and the trees are lush. East Cliff is Xiongshan Temple. Although the temple is small, it is also an extremely ingenious artistic maze. There used to be many lifelike and lifelike Buddha statues here, but today, although caves exist, all the Buddha statues have been destroyed except for only two stone Buddha statues. The west cliff is a calligraphy stone carving. There are 25 grottoes of different sizes on the east and west stone walls. Calligraphy and stone carving on the west coast wall are quite famous. In the past, when frontier generals and literati came to Yulin, they would go to Hongshixia to express their lofty sentiments, write poems and drink. On both sides of the canyon, the cliff walls are like axes. Cliffs that stand like screens are all made of sandstone. The setting sun shines in the west, and the east cliff is reflected in the river. The scenery is beautiful against the mountains and rivers. Today's Hongshixia and Zhenbeitai are works of art, which echo from afar and become two bright pearls on the site of Yulin Great Wall. It has also become one of the must-see places for Yulin tourism. Yulin, which was guarded by Beitai Town in the past, is now guarded by Beitai Town. Wan Li Great Wall terraces and Hongshixia have become the must-see places for tourists to come to Yulin. Yulin area has also set up a cultural relics preservation center in Hongshixia, which has strengthened the protection of cliff stone carvings in Hongshixia. Governor Yan Sui of the Ming Dynasty, Governor Sanbian of Shaanxi Province, and Liu Minkuan, the right assistant minister of the Ministry of War, leisurely visited Zhenbeitai and wrote a poem "Zhenbeitai": Autumn flowers bloom in the important town, and you can't swim for Taiwan. Qian Shan is far into the sky, and a river of spring water comes from the desert. Cui Wei Pavilion is close to the sky, touching outside the wall. Eyes high, quiet and quiet, is a happy garden.