
In 2003, Canadian gynaecologist Anthony Perks came up with an anatomical explanation for Stonehenge, the prehistoric monument in England whose precise purpose is a mystery.
“Stonehenge could represent, symbolically, the opening by which Earth Mother gave birth to the plants and animals on which the ancient people so depended,” he wrote in an essay published in a medical journal. It could depict, he suggested, “the human vulva, with the birth canal at its centre”. The essay was illustrated with sketches of Stonehenge and of female genitalia.