The corner of the Roman fort that forms the left hand corner of the wall that faces the River Ouse. It is located in the grounds of the Yorkshire Museum, the museum of local archaeology. In the late third century or early fourth century this facade was rebuilt incorporating the new trend in fort building of external, rather than internal tower structures. It appears that only the side facing the river was rebuilt with this feature.
The exterior of the tower with larger mediaeval block work evident above the smaller Roman blocks.
The interior of the multangular tower with the holes visible in the wall for the false floor and late Roman stone sarcophagi in the base. The red layer of tiles is Roman work tying the stonework together.
