The Greater Wall of China

摘要

A study conducted by the Chinese State Administration of Cultural Heritage and the Chinese State Bureau of Surveying and Mapping in thirteen provinces, regions and municipalities, has revealed no less then 3,850km of unknown sections of the Great Wall or, as the Chinese name it, the 'Long Wall of 10,000 Li'.rnUntil now the length was commonly put at about 5,000km, but the two-year government mapping study found that the wall spans 8,850km. The project found 'new' wall sections of 6,259km, 359km of trenches, and 2,232km of natural defensive barriers such as hills and rivers.