This book examines some of the most spectacular ancient monuments in Britain: the iron age brochs of north and west Scotland. It places the building of these unique fortifications in context and examines some of the impressive sites that may still be visited, including the brochs of Mousa and Clickhimin in Shetland and Carloway on Lewis. There is a short section on what brochs are not - including 'Pictish' towers. A select gazetteer of some of the most important brochs is followed by a list of museums in which representative artefacts are preserved.