The Great Wall of China, as we know it today, starts near the Yellow Sea and ends at a watch tower overlooking the White River. Stretching four thousand miles through deserts, over mountains and into the country’s northern heartland, it is a manmade wonder of the world.
Because so many people died in its making, the Chinese have called their wall “the longest cemetery in the world.” Not a single accurate map of the entire wall exists.
The Great Wall isn’t the only wall in China. There are so many








