In the first volume of his book series on Stonehenge, James Watts explores the origins of the stone structure. Is the structure actually made of stone, and how was it built? Were humans even capable of constructing Stonehenge? The author also examines the pyramids, the demise of Atlantis, and the Taj Mahal.
Stonehenge/Steelhenge - Volume 1 offers a worthwhile literary excursion into alternative history.