The first thing you notice when you trek Hadrian’s Wall is that someone seems to have nicked quite a lot of one of the greatest wonders of the world.
Stretching coast-to-coast from Bowness-on-Solway in the west to Wallsend on the River Tyne in the east, the UNESCO World Heritage Site is one of the most significant piles of ancient ruins outside of Rome itself.
And yet when you walk the 73-mile northern-most frontier of the Roman Empire, which over-worked soldiers started building in AD 122, you have to use rather a lot of imagination.
