This usb stick is an ultra cool way to save and store data whether at work school or home crafted into the shape of a classic stonehenge trilithon the memory stick is a fun and functional souvenir of this magnificent site and a great gift idea for any stonehenge admirerstonehenge39s true purpose is shrouded in mystery but one theory is that it was a giant calendar it is believed that the stones and the surrounding 56 aubrey chalk pit holes make it possible to predict the spring and autumn