History
Can you see the Great Wall of China from space?
Myth — it's invisible from space
Can you see the Great Wall of China from space?
No. This is one of the most persistent myths in geography. The Great Wall is about 5–8 metres wide — far too narrow to be seen with the naked eye from orbit. Astronauts have confirmed it is invisible without optical aids. Large objects visible from the ISS include highways, airports, cities, and reservoirs — all much wider.
Source: NASA; ESA; confirmed by Chinese astronaut Yang Liwei (2003)