Watch Ancient MegaStructures online: Episode 3 The Great Pyramid

The Great Pyramid of Giza is four-and-half thousand years old. It's the only ancient Wonder of the World still standing. It was conceived as a resurrection machine for the enigmatic pharaoh Khufu in 2551 BC and completed over 20 years later, just before his death. To cut and move the 2 million stones needed to build it would involve the organisation of the whole Egyptian state.

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