Hadrian's Wall is the largest, most spectacular and one of the most enigmatic historical monument in Britain. Built in a ten-year period by more than 30,000 soldiers and labourers for an extraordinary emperor, it consisted of more than 24 million stones, running 73 miles from east to west and a sea wall stretching at least 26 miles down the Cumbrian coast. Many of its forts are as large as the most formidable medieval castles, and the wide ditch dug to the south of the Wall, the Vallum, is larger than any prehistoric earthwork. In this book, based on literary and historical sources as well as the latest archaeological research, Alistair Moffat considers who built the Wall, how it was built, why it was built and how it affected the native peoples who lived in its mighty shadow. The result is a unique and fascinating insight into one of the Wonders of the Ancient World. At least a million people visit Hadrian's Wall each year and it has been designated a World Heritage Site. In this new book, based on literary and historical sources as well as the latest archaeological research, Alistair Moffat considers who built the Wall, how it was built, why it was built and how it affected the native peoples who lived in its mighty shadow. The result is a unique and fascinating insight into one of the Wonders of the Ancient World.