From Stonehenge to Callanish, from Newgrange to Er-Lannic, great prehistoric stone circles have drawn thousands of admiring visitors to their sites every year. This practical guidebook deals comprehensively with the stone circles of Britain & Ireland & with the cromlechs & megalithic `horseshoes` of Brittany. Featuring information, useful maps & more than 70 photographs, this is a resource for those interested in the mysteries of the ancient sanctuaries known as stone circles. This new edition will include a section on ` Druidical` circles, romantic creations of the late eighteenth & early nineteenth centuries.