Why Was the Great Wall of China Built? — Not Just for Defense

Over 2300 years, the Great Wall has been built and rebuilt for many purposes: border defense, signals, troop transfer, and trade. It has now become a national symbol and China’s top tourist sight.

The Great Wall of China: What It's Like to Visit, Photos

The Great Wall Of China Wasn't Built To Stave Off Genghis Khan's Armies

How Was the Great Wall Defended?

The Great Wall of China: taking a quieter path

Walls Don't Work – Foreign Policy

Great Wall of China: Length, History, Map, Why & When Built It

Great Wall of China Facts: 10 Frequently Asked Questions

Great Wall of China – A Miracle That Can Never Be Repeated

The Great Wall of China, History, Purpose & Facts

Was the Great Wall of China actually used as a defensive structure or more, as regulation of trade and movement of people, like Hadrian's Wall? It isn't that high, and considering it's

Why was the Great Wall of China Built & Reasons in Different Dynasty

The Great Wall of China Is Falling Apart

Was the Great Wall of China an effective deterrent to outside threat? - Quora