During the Ming dynasty, nearly one million soldiers were said to defend the Great Wall of China from “barbarians” and non-Chinese
The Great Wall is more than 2,300 years old.
The Great Wall cannot be seen from space.
The Great Wall labor force included soldiers, forcibly-recruited peasants, convicts, and POWs.
The First Emperor of Qin was not the first to build the Great Wall. He linked the northern walls of the states he conquered.
There most popular Great Wall legend is about Meng Jiangnv, 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.
The Gubeikou Section of the Great Wall has bullet holes in it, evidence of the last battle fought at the Great Wall .
During the Cultural Revolution (1966–1976), many Great Wall bricks were used in building homes, farms, or reservoirs.
The northwestern Great Wall sections (e.g. in Gansu and Ningxia provinces) are likely to disappear in 20 years, due to desertification and change in human land use.
The Jiankou Section of the Great Wall, known for being steep and winding, enjoys the most appearances on Great Wall picture books and post cards.
The most famous section of the Great Wall — Badaling — has been visited by over 300 heads of state and VIPs from around the world. The first of which was Soviet statesman Klim Voroshilov in 1957.
Rather than being one long continuous wall, the Great Wall of China is made up of a number of different sections. These sections were built by various dynasties over a long period of time from stone and other materials.
Its main purpose was protection against attacks and invasions from the north.
The Great Wall of China stretches around 6300 kilometres (3915 miles) in length. If you measure the length of all the different sections of wall, the distance is more like 22000 kilometres (13670 miles).
The Great Wall of China is the longest structure ever built by humans.
The widest section of the wall is around 9 metres (30 ft).
The highest point of the wall is around 8 metres (26 ft)
The first parts of the wall were built over 2000 years ago.
A large number of workers have lost their lives while building the wall.
Major rebuilding of the Great Wall of China took place during the Ming Dynasty that began in the 14th century. Construction during this time was strong due to the use of stone and brick.
Earlier sections of the wall were made from stone, wood and compacted earth.
Some of the well maintained areas of the wall, such as those near Beijing, are popular tourist destinations.
While some parts of the wall have been preserved or renovated, other parts have been vandalised or destroyed to make way for construction.
Rumors that astronauts can see the Great Wall of China from the Moon with the naked eye are untrue.
The average height of the walls is 25.6 feet (7.8 meters), and the highest is 46 feet (14 meters).
Location: It spans across 15 regions in north China: Heilongjiang, Jilin, Liaoning, Inner Mongolia, Beijing, Tianjin, Hebei, Shandong, Henan, Shanxi, Shaanxi, Gansu, Ningxia, Qinghai, and Xinjiang.
1/3 of the walls have disappeared.
As a must-see in China, it attracts 50 million visitors every year, and had been visited by more than 460 state heads and VIPs from around the world.