The Great Wall of China is located in China.
The Great Wall of China is made of rock, cement, bricks, and powdered dirt. The Great Wall of China was meant to protect the north empire of China from enemy attacks. The Great Wall of China is the longest structure humans have built.
The Great Wall of China consists of ninteen walls. The first was build in 7th century Bc.
It is about 21,196 kilometers (13,171 miles) long, 9.1 meters (30 feet) wide and 15 meters (50 feet) high.
