Decoding the Unknown on MSN

Scientists discovered a secret tunnel theory that could explain how the pyramids were built

For thousands of years people have wondered how the pyramids of Egypt were truly built. The Great Pyramid of Giza alone contains around 2.3 million limestone blocks, some weighing over 15 tons, yet ...
Smithsonian Magazine

Monumental Shift

How exactly was the Great Pyramid built? Inside-out, thinks architect Jean-Pierre Houdin. Courtesy of Virtools In 1999, Henri Houdin, a retired French civil engineer, was watching a television ...