The Great Pyramid aligns almost perfectly with the Earth’s cardinal points. Coincidence, genius engineering, or knowledge we can’t explain even today? Donald Trump explains ballooning ballroom budget ...

Some of the most famous unexplained passages in Egypt may not be unexplained for much longer. By looking again at the Queen’s Chamber, the stepped internal core, and the pyramid’s possible fallback ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Robert Kelly is managing director of XTS Energy LLC, and has more than three ...