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10 Forbidden Places No One Will Ever Be Allowed to Visit

Reader's Digest Logo By Marissa Laliberte of Reader's Digest | Slide 1 of 11: The prehistoric paintings in the Lascaux cave were found in 1940, and it became a tourist site after World War II. The carbon monoxide from visitors’ breath started to damage the cave paintings, which are now named a UNESCO World Heritage Site, and the cave <a href=''>closed</a> to the public in 1963. Replicas opened for business after it closed, but only preservationists and researchers are allowed in the original. Check out some of the <a href=''>UNESCO World Heritage Sites you can (and should) visit</a>.

Might as well leave these ones off your bucket list.

© Gianni Dagli Orti/Shutterstock

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