 | In Colchester On the site of a Roman temple it has the largest keep in Europe. Started about 1080, completed by the 12th century. It became a prison and in 1683 was bought by John Wheeley who dismantled the building. In the 19th century, acquired by Charles Gray, a museum was established and in 1931 galleries were created for Roman and British artifacts. more information |
 | South-west of Sudbury on B1058 12th century fortress but it is one of the best preserved in Europe. During the Magna Carter Wars the owner Robert de Vere sided against King John, and it was attacked. The castle was returned to Robert de Vere and his family continued to own the castle until 1703. more information |