Modern machinery at the bottom of the Great Wall. It really is a Great Wall! More to follow on that.
It really is a Great big wall! We were at the top in the midst of a sand storm. Some of the strongest winds I've experienced, full of sand. I felt like my face had been sandblasted by the end of the day. Certainly helped keep the tourist numbers down though!
You can see the way the sand coloured the sky in the background. Pretty mad!