In the Petite Camargue region in southern France, the best way to see the medieval town of Aigues-Mortes is from its medieval ramparts. On a wander atop the city walls, you can see right across the ancient town, once filled with knights and crusaders during the 12th-century reign of Louis IX. Saint Louis ordered the ramparts so that his French kingdom could have a Mediterranean marina that would give them passage to the Middle East. Make sure to check out the famous Constance Tower while you’re in town. Built under the orders of Louis in 1242, it’s the most impressive of the 20 imposing towers dotted around the city walls.
Down at street level, a stroll along Aigues-Mortes' lively medieval streets is a popular pastime. While you’re here, try the local Fougasse pastry, which can be savory or sweetened with sugar and orange blossom. If you walk 15 minutes away from town, you'll run into the local salt works, a major part of the town's history, and their pink salt lakes.
The train journey from Nimes to Aigues-Mortes is about an hour long. Admission to the Constance Tower is 10 euros, and inside there is an exhibition about the history of the tower as well as regular temporary exhibitions.