Through their superlative buildings, the legacy of the Egyptian empire continues to enthrall people to this day. Yet these incredible structures were made over 4,000 years ago. Historian Bettany Hughes explores what drove the people of this ancient civilisation to build on such a massive scale. The story is told through the reigns of two pharaohs - Khufu and Ramesses II. Separated by 1,200 years, they both ruled during periods of incredible architectural ambition. Under Khufu, the Great Pyramid of Giza was constructed; while under Ramesses II the temples of Abu Simbel came into being. But what drove this ambition? This documentary attempts to get into the hearts and minds of these early Egyptians in their unstoppable pursuit of immortality via great feats of engineering.