It's one of the most mysterious places on earth: a strange circle of oddly arranged stones, standing silently over the plains of England. Legends have linked Stonehenge to everyone from the pagan druids to the magician Merlin. More recently, science has determined that this enigmatic temple was actually built by early Britons some 4,500 years ago. Yet the question of how workers moved 40-ton stones over 20 miles of rolling hillside- and how they set them upright in perfect alignment at their sacred site- has been a matter of mere conjecture... until now.

NOVA sends archeologist Julian Richards, engineer Mark Whitby, and stonemason Roger Hopkins (of This Old House) on a mission: to move, raise, and cap a Stonehenge-like structure, armed only with Stone Age tools. Will they and their band of volunteers succeed- using clever techniques such as a timber track for transport or a sliding counterweight for tipping a huge stone into its hole? "Archeology can answer some question," says Richards. "And this has answered some of the questions about the task. But there's always going to be a mystique about Stonehenge."