20. Northern England: Hadrian’s Wall
Hadrian’s Wall was once a defensive fortification built by the Romans from AD 122 onwards under the advocacy of Emperor Hadrian.
The wall stretches from Ravenglass on the west coast to Wallsend on the east coast. The wall served not only as a military fortification but also as a point for levy taxation and a customs post.
Visitors to the area can still view a significant portion of the wall, given that much of it was reconstructed during the 19th century by John Clayton.