The Great Pyramid at Giza has been studied for centuries, yet new scans of the 4,500-year-old monument suggest it may still be hiding a concealed passageway that functions like a secret doorway. Fresh ...

While the Great Pyramid draws the most attention, its neighbor Khafre hides mysteries of its own. Inside the burial chamber ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: The Pyramid of Menkaure, one of the three famous ...

See also related article by Jean-François Augereau, "Will the Great Pyramid yield up its secrets?" Manchester guardian weekly (September 14, 1986, page 12 (VF-- Art, Egypt).

Researchers explore a tunnel in Teotihuacan last accessed 1,800 years ago. April 28, 2013— -- Mexican archeologists discovered three previously unknown chambers under a pyramid in Teotihuacan, an ...