Great Wall of China
The Great Wall of China is one of the seven wonders of the ancient world.
It is one of the most famous walls in the world, and is also a popular tourist site.
The Great Wall of China spans over 6,000 kilometers, and is made of stone.
It is located on the northern border of China.
The Great Wall of China was built in the time of the first emperor of China, more than two thousand years ago, to protect Chinese provinces from the invasion of robbers and vagabonds.
Construction of the Great Wall of China was done by many workers who had worked non-stop for ten years.
Over the years, parts of the wall were destroyed by the forces of nature, natural deterioration and lack of proper care.
How long did it took to build the wall?