At the top of the tourist attraction list, the Roman Amphitheater is the largest and best preserved ancient monument in Arles. Also known as the of Amphithéâtre d'Arènes, this arena dates back to the first century A.D.

 With a length of 136 meters and a width of 107 meters, the arena was one of the largest in Gaul and could accommodate 21,000 spectators. The facade has a double row of arcades with 60 archways and four arches used as main entrances. Seating for the spectators was once on 34 rows of tiered steps. 

The arena was actually built into the bedrock of the site, and in Roman times, the stone seats were covered with wooden planks. During the Middle Ages, towers were added to the arena. Visitors can climb to the top of the tower over the entrance for a wonderful view of the old town of Arles and the nearby ancient theater. The amphitheater is still used today as a venue for bullfights, shows, and other events.