Here's a video from my trip to China last week. I went with my boss and another engineer to the Great Wall, at Mutianyu. Most people go to a slightly closer location of the Wall, so this one is less crowded with tourists. One fun part is that you can ride a toboggan on the way down. I snuck a video camera for the ride, though I had to shut it off early when one of the guards started to yell "no photo".
Video: Great Wall of China