This might just be the most noteworthy of all Roman sites on these islands. Once there was a busy harbour here. It was a gateway to Britain under Roman rule. The site is now more than 2 miles away from the ocean. But one can use one's imagination and understand that this place saw the start and the finish of Roman rule in Britain. First this was a house. A Manor houses. It has a tower which you can climb. And there is a passage, deep below the ground which runs between the tower and the cooking area. It was a matter of status. During the 15th century after extensive rebuilding the house was allowed to call itself a castle.