Often I will get some exercise by going for a cycle ride - and I frequently follow the Millennium Way - a cycle route which goes around the city. Just off the route is a Roman Villa.
This is a photo I took of the site during a recent cycle ride. There are interpretation boards which explain the historical development of the site - and they show how it looked at various times. Below is an artists impression of the Villa at its height.
A local archeological webpage is dedicated to the villa. It can be accessed here.