<P> Mutianyu Great Wall, China . This is atop the wall on a section that has not been restored </P> <Li> <P> The Old Dragon Head, the Great Wall where it meets the sea in the vicinity of Shanhaiguan </P> </Li> <P> The Old Dragon Head, the Great Wall where it meets the sea in the vicinity of Shanhaiguan </P>

How long was the great wall of china when it was first built