“The Great Wall of China is the only man-made structure visible from space.”
While it's a massive structure, it's nearly impossible to see the Great Wall from space with the naked eye — especially in low Earth orbit.
The claim gained popularity in the early 20th century and was even repeated in schoolbooks. But astronauts, including those from NASA and China’s space program, have confirmed that it’s extremely difficult to see the Wall from orbit due to its narrow width and color blending with the surrounding landscape.
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