The old 1904 Ordnance Survey map of Totnes, Devon was always split into two maps. Gomaps have joined them together to produce a great look at the past and allow it to be a map or wallpaper. We also have Ashburton, Devon.
Another local town that is was divided in two ordnance survey maps was Ashburton on the edge of the Dartmoor National Park. Its a lovely traditional town with tractors driving through the center and riders on horseback still having right of way and much more ancient history which I will not tempt to tinker with. Worth a visit.