Walks on and around Hadrian's Wall
Hadrian's Wall was built under the instruction of the Roman emperor Hadrian, starting in AD 122 and taking about six years to complete. For most of the period of occupation it was the northernmost boundary of Roman Britain, apart from a short period when it was pushed further to the Antonine Wall, some 100 miles further north. A useful history of the wall can be found on Wikipedia.
Hadrian's Wall has been established as an official long-distance trail. It is one of the most popular and there are plenty of places to stay, plus reasonable public transport access to most points along the wall if you want to do it in stages. More information can be found on the National Trail website.
Note that to find all the walks on and around Hadrian's Wall you should look under both Northumberland and Cumbria, as the wall crosses both counties. This in particular applies to our guides for the entire trail from end to end, which start at the western end in Cumbria and end in the east (there are seven stages in all).