i know the great wall of china can be seen in the moon because in some china books i read said that the great wall of china can be seen in the moon

Sorry. That wouldn't be true. No man-made objects on earth can be seen from the moon. Although quite impressive in its length, it's not half as wide as most interstate highways, nor in any way comparable to some of the large automotive plants near Detroit, none of which can be seen from the moon.