In 1995, a NOVA team dared to demonstrate firsthand what has mystified historians for millennia: how to raise an obelisk using only materials and techniques the ancient Egyptians might have used.

NOVA: Can you give us an example? This modern depiction of the pharaoh Hatshepsut's obelisk barge, drawn from a faded painting on her mortuary temple in Luxor, offers one of the few clues left by ...