This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

How Many People Did it Take to Build the Great Pyramid? | RealClearScienceGiven that some 4,600 years have elapsed since the completion of the Great Pyramid of Giza, the structure stands remarkably ...