Westminster Abbey is the most complex church in the world in terms of its history, functions and memories - perhaps the most complex building of any kind. It has been an abbey and a cathedral and is now a collegiate church and a royal peculiar. It is the coronation church, a royal mausoleum, a Valhalla for the tombs of the great, a ''national cathedral'' and the ''Tomb of the Unknown Warrior''. This new edition recounts the story of this iconic building and the role it plays in our national psyche.