How Were the Pyramids Really Built?

The Great Pyramid of Giza is taller than a 40-story building, made of over 2 million massive stones — and it was built 4,500 years ago without cranes, trucks, or power tools. So how were they really built? Some people say aliens. But the real answer is way more amazing. In this episode of I Wonder, we dig into one of history's greatest mysteries and uncover the clever tricks and brilliant minds behind one of the most incredible structures ever made