The Roman baths of Gafsa (French: Piscines Romaines) are well-preserved[1] remnants of the Limes Tripolitanus era of North African history, when Gafsa, Tunisia was called Capsa.[2] According to a history of water in the Roman world, "there are two open-air central pools" in part because it was a Trajanic colony.[3] The baths and the nearby Gafsa Oases were both established because of a local spring that emerges from the nearby mountains.[4]Sallust mentioned the oasis/settlement existing circa 100 BC.[4] A "Byzantine fortress" also remains.[5]