The Regional Museum of Gafsa holds a collection that punches above what you might expect from a provincial phosphate city. The standout pieces are the Roman mosaics, several of which were recovered from local villas and retain vivid color — hunting scenes, geometric borders, a fish-and-water composition that reflects how the Romans thought about this oasis in the middle of the steppe. The display is modest in scale but well-curated, and the labels provide enough context to understand why each piece matters.
The museum also covers the Capsian culture, the Mesolithic people who inhabited this region from roughly 10,000 BCE and gave the Gafsa area its name in the archaeological literature — "Capsian" derives from the Latin name for the city, Capsa. Bone tools, ostrich-shell beads, and stone implements found in middens around the region fill one room, giving a sense of how long this spot has drawn human settlement. It is not a large museum and an hour is enough, but it provides the historical grounding that makes walking around the old town more rewarding afterward.