The historic site of Arles comprises several building and monuments however the best ones are the Roman theatre and the Arenas that have been well conserved until today. The theatre, conversely from the one in Orange, has lost its stage and its facade a long time ago. Only the tier is still in place. The Arenas still offer a tremendous testimony of the Roman life and compose with the Pont du Gard and the Orange Theatre the greatest Roman remains in France. A renovation campaign has begun several months ago and will allow to maintain the beauty of the site for a long time.
If you have the time, give a look to the Triumphal Arch and the different Roman and Romanesque monuments of the historic center.