How Old is the Great Wall of China?

The Great Wall was built and rebuilt, between the 5th century BC and the 16th century. It is located in China and stretches from Shanhaiguan in the east to Lop Nur in the west, along an arc that roughly delineates the southern edge of Inner Mongolia. With all of its branches it stretches 5,500.3 miles. The Great Wall of China is very old.