In Ancient Egypt, every pyramid was topped by a capstone called a pyramidion. Usually made of granite, limestone, or diorite covered in gold leaf to reflect the rays of the sun, they were often ...

Fifteen miles south of Cairo lies the site of a royal graveyard...and an ancient crime scene. When archaeologists discovered a 4,000-year-old burial chamber there, still sealed with a 10-ton capstone, ...

The Secret of the Great Pyramid moves between the ancient and the modern. The ancient story chronicles, step-by-step, how a nation of farmers only recently emerged from the Stone Age could construct ...