Geograph - photograph every grid square

The cobbles in the ground near Newcastle castle keep mark out the site of Newcastle (PONS AELIUS) Roman fort. The fort is of 2nd to 4th century date, and was uncovered by excavations; there are no visible remains. It has been interpreted as a small bridgehead fort protecting the Roman bridge over the River Tyne. Altars dedicated to Neptune and Oceanus were recovered from the river bed and are thought to have stood on either side of the road at the central pier of the bridge.
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The art work to interpret the site for visitors was created in 2014 as part of a £850,000 makeover of Newcastle's medieval Black Gate, the 13th Century entrance to the castle, funded by the Heritage Lottery Fund. The replica Roman altar, commissioned by Newcastle City Council, was hand-carved, lettered and painted by stone specialists, Mason & Forster of Roker, Sunderland, and placed on a pad stone of the new cobbled market area as to appear to be lying on the river bed Link