It took 500 men just to pull each sarsen, plus 100 more to dash around positioning the rollers. Just think about it for a minute. Can you imagine trying to talk 600 people into helping you drag a 50-ton stone 18 miles across the countryside, muscle it into an upright position and then saying, 'Right, lads! Another twenty like that, plus some lintels and maybe a couple of dozen nice bluestones from Wales, and we can party!' Whoever was the person behind Stonehenge was one dickens of a motivator, I'll tell you that.