The Largest Stone Monument In Britain Before Hadrian's Wall? 'Really?', you say. 'Come on, that can't be true.' Well, let's double down on that because this book will also tell you how Stonehenge began as a Welsh monument almost a millennium before Stonehenge, as we know it, was built. Despite that, it's not a 'wacky' book. It's heavily researched, fairly heavy on footnotes, and careful to distinguish factual evidence from wishful thinking, although, inevitably, there is much supposition. By the end of the book, though, you might just be saying 'Well, I never thought I'd say this, but I think you may be right. Who knew?' Who indeed