At a site as large and complex as Portus, it is often hard to work out the building phases of individual structures, or get a feel for the original landscape. The AHRC portus Project is therefore employing a range of visualisation tools to interpret and present the site as it is now and as we believe it was in the past. Computer graphics make the site easier to understand by presenting archaeological findings in an easily comprehensible, but historically accurate format. Similarly, artistic and conventional illustrative techniques shed light on specific objects and on the archaeological process. Photography, including innovative techniques such as polynomial texture mapping, create an archive of the excavation and remote access to the artefacts recovered.