Great Wall of China

<p>Original photo here: <a href="http://www.flickr.com/photos/matt512/4065629211/" title="http://www.flickr.com/photos/matt512/4065629211/">http://www.flickr.com/... />
By Matt Barber under CC: <a href="http://www.flickr.com/photos/matt512/" title="http://www.flickr.com/photos/matt512/">http://www.flickr.com/photos/matt...