#1 Arles Amphitheatre (Arles)
The Arles Amphitheatre, built in 90 AD, stands as the most visited landmark in Arles and one of the best-preserved sites from the Roman era. Measuring 136 meters long with 120 arcades across two tiers and medieval towers, this UNESCO World Heritage site now hosts ferias, concerts, and historical reenactments of gladiator combats.