Great Wall of China Seen from Space?

There is a common saying that the Great Wall of China is the only man made object on Earth visible from the surface of the Moon.  Is this true?  Unfortunately no.  It's another common misconception.  The Great Wall of China is almost invisible by man in a spacecraft orbiting the Earth, let alone from the surface of the Moon!

The Great Wall of China is long, but it isn't very wide.  There are many other, wider objects on Earth.  If the Great Wall of China is seen, then shouldn't wider objects be seen as well?  This is just another hole into the claim that the Great Wall is visible from space to the naked eye.  

For further details and pictures, check out NASA's debunking of this claim.