The Great Wall of China is NOT visible from space with the naked eye - this is a persistent myth that has been debunked by astronauts and NASA.

“The Great Wall of China is the only man-made structure visible from space with the naked eye.”

1. [1] Reuters - China astronaut: I couldn't see Great Wallrel 85%
   reuters.com

   “China's first astronaut Yang Liwei said he could not see the Great Wall of China from space, contradicting a popular myth.”

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2. [2] BBC - The Great Wall of China: The myth about space visibilityrel 90%
   bbc.com

   “Chinese astronaut Yang Liwei said he could not see the Great Wall from space, debunking the popular myth.”

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3. [3] Snopes - Can You See the Great Wall of China from Space?rel 95%
   snopes.com

   “The Great Wall of China cannot be seen with the unaided eye from space, according to astronauts and space agencies.”

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4. [4] NASA - Is the Great Wall of China Visible from Space?rel 100%
   nasa.gov

   “The Great Wall of China is generally not visible to the naked eye from space, even in low Earth orbit.”

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