Or 21,196 km!
It could even be considered older than that if you count the walls built in the 7th century BC!
The Great Wall of China is a series of walls linked together. Much of it has been destroyed, vandalised or simply eroded with time!
There are 67 towers in the Jinshanling section of the wall, which is 125 km from Beijing.
The busiest days can see up to 70,000 people visiting the Wall! Badaling is the most popular part, 50 miles from Beijing.
Some parts of the wall are under threat due to human action (masonry theft) and desertification (Tengger Desert is expanding).
First emperor of China, Qin Shi Huang (259 BC - 210 BC) and the Ming Dynasty (1368 - 1644) contributed vastly to the Great Wall being linked and expanded.
The Great Wall of China cannot be seen from space without visual aids.
Have a comment or suggestion?