Egypt’s Pyramids of Giza were built to endure an eternity, but how remains one of the ancient world’s greatest mysteries. Here’s what archaeologists know.

It was a real pyramid scheme. Scientists have proposed a groundbreaking new theory on how Egypt’s Great Pyramid was built, ...

A 7,000-year-old ostrich egg found in a Nubian grave might depict one of the most recognizable sights in the world: the pyramids of Giza. But if that’s true, it means they were already standing 2,000 ...