1. Contrary to common belief, the Great Wall of China cannot be seen from space with the naked eye. It can be seen with aid.
2. As early as the Qin Dynasty (221-207BC) when building the Great Wall, glutinous rice flour was used in making the binding material to bind the bricks.
3 .The sections of the Great Wall that we mostly associate with The Great Wall of China were built by the Ming Dynasty. This was the last part of the wall that was built and has been made with brick and features many tall watch-towers.
4. The Great Wall of China has been called the longest cemetery on Earth. Over a million people died building the Wall and archaeologists have found human remains buried under parts of the wall.
5. Although the official number of the length of the Great Wall is 8851.8 kilometers (5500 miles), the length of all the Great Wall built over thousands of years is estimated at 21,196.18 kilometers (13,170 miles). The circumference of the Equator is 40,075 kilometers (24,901 miles).
6 . The Great Wall of China is threatened with erosion. The northwestern sections (e.g. in Gansu and Ningxia provinces) of the Great Wall are deteriorating so quickly. It is believed that these sections may disappear within 20 years, due to demolishment by nature and human.
7. Over 10 million people visit the Great Wall of China every year. The most famous section of the Great Wall-Badaling, had been visited by over 300 heads of state and VIPs from around the world, the first of which was Soviet. But it is also the busiest section of wall which is restored. If you are a hiker who like to see the real unspoiled Great Wall which is off the beaten path, we don’t suggest you go there.
8. During the Cultural Revolution (1966-1976), many bricks of the Great Wall were taken away to use in building homes, farms or reservoirs. Otherwise many sections of the Great Wall would be preserved much better than what they are like today.
9. The Great Wall is wide enough in some places to drive a car over it.
10 . The most well known of all of the legends of The Great Wall of China is the story of “Men Jiangnu’s Bitter Weeping” whose husband died building the wall. Her weeping was so bitter that a section of the wall collapsed, revealing her husband’s bones so she could bury them.