Geograph - photograph every grid square

Colchester Castle

The castle is built on the foundations (or the podium) of the earlier Roman temple of Claudius (built between 54AD–60AD).[5] These foundations, with their massive vaults, have since been uncovered and can be viewed today on a castle tour.

The castle was ordered by William the Conqueror and designed by Gundulf, Bishop of Rochester. Building began between 1069 and 1076 under the supervision of Eudo Dapifer, who became the castle's steward on its completion. Building stopped in 1080 because of a threat of Viking invasion, but the castle was completed by around 1100. Many materials, such as Roman brick and clay taken from the Roman town, were used in the building and these can easily be seen.