Roamin' around London Wall
Just by Tower Hill station, on the way to the Tower of London, behind this statue of the Emperor Trajan (one of the most renowned emperors) is a wall. Fairly old wall, too, as it is part of the original London Wall built by the Romans nearly two thousand years ago. That was the start of it all. Haven't found many digital photos on the Internet dating from then, though. You can read about the wall here. But anyway, what have the Roman's ever done for us, eh?