Explore how the ancient Egyptians built the Great Pyramid, a tomb created for Pharaoh Khufu which took over 20 years to complete. -- As soon as Pharaoh Khufu ascended the throne circa 2575 BCE, work on his eternal resting place began. The structure’s architect, Hemiunu, determined he would need 20 years to finish the royal tomb. But what he could not predict was that this monument would remain the world’s tallest manmade structure for over 3,800 years. Soraya Field Fiorio digs into the construction of the Great Pyramid. Lesson by Soraya Field Fiorio, directed by Luísa M H Copetti, Hype CG.