Seeing the great wall of China from the moon is an example of an urban myth. Interestingly, the story goes back to a 1932 cartoon that proclaimed “the only one that would be visible to the human eye from the moon”. Yes, 37 years before the first human landing on the moon happened!
As per the NASA website, the wall is generally not visible to the unaided eye even in low Earth orbit, let alone from the moon’s surface. At the same time, some of the other human-made landmarks are visible from low orbits. A key reason for this invisibility is that the texture of the material used to build the wall is similar to the surrounding landscape.
