ScanPyraminds

The Great Pyramid of Giza, the largest in all of Egypt, was built more than 4500 years ago as the final resting place of the 4th Dynasty pharaoh Khufu (a.k.a. Cheops), who reigned from 2509 to 2483 BCE. Modern Egyptologists have been excavating and studying it for more than a century, but it's still full of mysteries that have yet to be fully solved. The latest discovery, detailed in a new paper in the journal Nature, reveals a hidden void located with the help of particle physics. This is the first time a new inner structure has been located in the pyramid since the 19th century.

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Via: Mental Floss