For 6,822 meters, the Aqueduc de Castries stretches and winds through Montpellier, originating in Castries park and gardens. From end to end, the aqueduct has a gradient of only three meters, and it was built at the behest of Rene Gaspard to carry water. It’s not as old as some other aqueducts out there in the world, but it is in remarkably good shape and is a scenic and iconic part of Montpellier’s history. There is a trail that visitors can walk and hike along that follows the aqueduct, which leads directly through the historic city center of Montpellier with an impressive and elaborately built section known as the Grand Arcs. The aqueduct is no longer in use, but it makes for some really striking photos and learning the history behind it—and visiting Castries where it originated—is definitely worth the visit.

3 avenue de Montpellier, 34160 Castries, Montpellier, France