Archaeologists working on the medieval castle in Rochester, Kent—founded by the Romans as Durobrivae shortly after the invasion in 43—have stumbled upon the remains of a Roman-era city wall. Graham Keevill, an archaeologist on the dig, was enthusiastic about the condition of the accidental find:
"We don't have many Roman city walls surviving in England. To get an unexpected one like this is fantastic. It is also a perfect example."
He said the wall had "high-quality" facing stones on each side, and its rubble core, made up of stone, flint, sand, and gravel, would have been poured in "to set hard almost like concrete, to bind the whole wall together".