GREAT WALL OF CHINA NEAR BEIJING The Great Wall of China is the world's longest wall. Estimates of its length vary from 1,500 miles to 31,250 miles, with most sources saying it is between 3,900 miles and 4,500 miles long.
For thousands of years, the ancient Chinese thought they were pretty much alone on the planet Earth. They knew there were people to the north, - the Mongols - but they did not know that other advanced ancient civilizations existed anywhere else.
The Great Wall of China is a series of stone and earthen fortifications in China, built, rebuilt, and maintained between the 5th century BC and the 16th century to protect the northern borders of the Chinese Empire during the rule of successive dynasties.
Sure you've seen photos...but the only way to really appreciate the Great Wall of China is to stand on its walls and stare in awe as it snakes across the Gobi Desert and China's placid mountains like a majestic ridge-backed dragon.
Great for invaders point of veiw
The Great Wall of China in fact is a complete and rigorous defense project composed of countless passes, watchtowers, garrison towns, beacon towers and blockhouses.
The Great Wall stretches from Shanhaiguan in the east, to Lop Lake in the west, along an arc that roughly delineates the southern edge of Inner Mongolia. The most comprehensive archaeological survey, using advanced technologies, has concluded that all the walls measure 8,851.8 km.
Introduction to the Great Wall of China The Great Wall of China is an immensely long man-made wall that was built to keep out invaders. It spans nine provinces and its total length is 6,700 km (3,948 miles).