As we move back in time, the theories slowly pile up and we come across news that researchers had shown the stone circles had been used as a giant computer; that others had found it was really an observatory for studying stars and predicting the seasons; that a couple of individuals had demonstrated clearly that its rings had acted as a docking pad for alien spaceships; while University of British Columbia researcher Anthony Perks produced the jaw-dropping idea that the great henge had been built as a giant fertility symbol, constructed in the shape of the female sexual organ.
Artist's conception of what. . . .errrr, never mind.