Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Visiting the Great Wall of ...

One of the innumerable legends surrounding the construction of the Great Wall of China tells of a workman who estimated that he would need 99,999 bricks to construct a section of the wall now known as ...

"This fear factor, this war driver is a very strong one and it's been with this species ever since the beginning and it motivated the Great Wall of China."- Neil deGrasse Tyson The Great Wall of China ...

Since 1978, China has planted more than 66 billion trees along its 2,800-mile-long northern border, and it wants to plant 34 billion more over the next 25 years to complete its "Great Green Wall." ...