The Antonine Wall, which marked the high water mark of Roman civilization in Great Britain, was constructed 2000 years ago from Clyde to the Forth Estuary in Scotland.
From the article:
A short climb from the baths was New Kilpatrick Cemetery and the first trace of the wall itself. Two trenches revealed the stone base on which it was built. The Antonine Wall was an earth structure, a turf rampart with a large ditch in front, and so has suffered the depredations of time more than its stone built cousin to the south. As I followed the wall beyond the city limits, crossing and re-crossing its course on grime spattered roads heavy with traffic, another difference became obvious. Where Hadrian’s Wall had spent the intervening millennia standing in relative isolation, the Antonine Wall – which was easily visible until the eighteenth century – found itself at the epicentre of the agricultural and industrial revolutions that transformed the landscape of Central Scotland. Pylons stalked across barley fields; derelict farmhouses and dilapidated warehouses lay between construction sites and garden centres. In this chaotic landscape, the discovery of a short, weed-filled section of the ditch just outside Bishopbriggs seemed miraculous.