China - The Great Wall of China. This wall measures more than 12,000 miles. It is one of longest structures ever constructed by man. A powerful feat of engineering!!!
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China - The Great Wall of China. This wall measures more than 12,000 miles. It is one of longest structures ever constructed by man. A powerful feat of engineering!!!
Oh my goodness!!! Am not aware of this. C
Yes, you can Google it to see images. Its a great piece of structural design