See how these brave men restore the Great Wall of China, with some parts dating back 2,000 years. http://on.natgeo.com/2uzvOQU pic.twitter.com/qhp7FNrFZu

See how these brave men restore the Great Wall of China, with some parts dating back 2,000 years. http://on.natgeo.com/2uzvOQU  http://pic.twitter.com/qhp7FNrFZu

https://twitter.com/NatGeoTravel/status/883400422307749888