Reels tagged #greatwall
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7 Wonders
The Great Wall is more than 21,000 kilometres long
A 2012 survey counted all branches and eras of construction at 21,196 km. It is not one continuous wall but many walls built by different dynasties over 2,000 years.
7 Wonders
You cannot see the Great Wall from space
Despite the popular claim, astronauts report the wall is too narrow and blends with surrounding terrain. Chinese astronaut Yang Liwei confirmed he could not spot it from orbit.