Less than the Great Wall is not a good man, the trip is 20,000. In the minds of Chinese, the Great Wall is like a business card of China. Many Chinese and foreign tourists come to Beijing, and one of the first places to visit must be the Great Wall. The majestic and winding Great Wall, like a warrior in a lofty mountain, defends the land of China. This issue to tell you about this attraction, very special, it is known as China's "Underground Great Wall", more than 700 years of history, it is said that this attraction has been a military secret throughout the dynasties, where is this underground Great Wall?
In 1938, a passage known as the "Underground Great Wall" was first discovered in Hangzhou, which is the famous Cao Cao Underground Transport Road. In ancient times, Cao Cao's underground military transport road was a very important military building, it was built in the late Eastern Han Dynasty, was cao cao for military needs at that time to preside over the construction, at the beginning was used to transport soldiers in battle.
Since then, this underground military artery has been regarded as a military secret by successive dynasties. During the Tang and Song dynasties, Cao Cao's underground military transport road was repaired and expanded many times. In the Southern Song Dynasty, Cao Cao's underground military transport road was buried by sediment because of the Yellow River.
Hundreds of years of historical precipitation, Cao Cao's underground military transportation road, it seems that the world has long forgotten. It was not until 1969 that people responded to the call of the state and built an air raid shelter to discover this spectacular "underground Great Wall". According to the current excavations, the length of Cao Cao's underground military transport road is nearly 8,000 meters, and such a grand scale must have cost a lot of manpower and material resources.
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In 2001, this large-scale "underground Great Wall" was officially transformed into a national key cultural relics protection unit. Cao Cao's underground military transport road is almost full of the entire old town of Bozhou, considering the protection of cultural relics, the current area open to tourists is only about a kilometer. It is reported that the structure in the passage is very complex, and after several dynasties and generations of repairs, the structure is also very different. There are also many obstacles inside, which is very clever! If you let a person who doesn't know anything into the passage, you may be careless and will be knocked down by the obstacles along the way.
In the past, the underground military transport road had a very important role in the military, but because it was a military secret, few people knew about the existence of this passage. Such a difficult underground passage can be set up as an ingenious "underground Great Wall", which is a must! Nowadays, Cao Cao's Military Road has become a famous local attraction, and interested friends can personally visit it and appreciate the infinite wisdom of the ancients.