AIP Director talks from his garden about the model Great Pyramid he built there and how it teaches about the way the Egyptians built the Great Pyramid. The episode culminates in the story of how the most popular alternative Pyramid theorists, Robert Bauval and Graham Hancock, changed their views of when the Pyramid was built when Dr. Zahi Hawass took them to the relieving chambers over the Kings Chamber and showed them the graffiti left there by the builders. The Great Pyramid was built during the reign of Pharaoh Khufu in the Old Kingdom 4th Dynasty of Egypt. This episode is available on YouTube.