A compelling insight into the greatest manmade structure in the world, through the tales of three very different individuals who helped to forge a nation and create an icon, this is the human story of the Great Wall of China. More than 3000 miles in length, built in just 20 years by a workforce almost 2 million strong, using technology and construction techniques that inspire awe and admiration even today, Great Wall is based on extraordinary first-person accounts and astonishing new archaeological finds – the story of one of the greatest wonders the world has ever known.