Interesting talk, a popular science bestseller: Can you see the Great Wall of Wan Li from the moon?

No, on the moon, you can't see any human buildings with the naked eye. Although the concept that "the Great Wall of Wan Li is the only visible human building on the moon" has been deeply rooted in people's hearts, it is actually the result of confusing "the moon" with space.

Space is very close to us. Seen from the earth's surface, 100 kilometers is space. You can see many human buildings there: highways, ships at sea, railways, cities, farmland and even some individual buildings.

However, just a few meters above the earth's surface, there are no human buildings at all. On the moon (more than 400,000 kilometers away), even the mainland is almost invisible.