Hadrian's Wall

Stretching 73 miles from coast to coast and reaching a height of about 13 feet, Hadrian's Wall should have been counted as one of the seven wonders of the ancient world. Today, a World Heritage site, it stands as the most imposing monument north of the Alps and attracts millions of visitors a year. Yet, despite all the excavation and research that has been carried out, this is the first detailed g...