RT 4/6. A stone barrier 74-miles long, and up to 15ft high and 10ft thick, for 300 years Hadrian's Wall stood as CHOICE the Roman Empire's most imposing frontier. Almost
2,000 years after it was built, the wall is providing a window into the human past. Archaeologists have properly excavated less than one per cent of it, but they have unearthed extraordinary findings. Julian Richards journeys back in time to unlock its secrets. Director/Producer James Hayes