Gafsa is a working oasis city in west-central Tunisia, set in an arid landscape where the Atlas ranges give way to the steppe and, eventually, the Sahara. It is not a polished destination, and it does not pretend to be — the economy here runs on phosphate extraction, and the surrounding hills are notched with open-cast mines that produce some of the world's largest phosphate reserves. But Gafsa has genuine historical weight, and travelers heading deeper into the Jerid will find it a worthwhile pause rather than just a fuel stop.
The most visited sight is the Piscines Romaines — the Roman pools — sitting right in the heart of the old town. Two large stone-lined basins, fed by natural springs, have been in continuous use since antiquity: people swam here in Roman times, and locals still cool off in summer. The setting is undeniably atmospheric, the ancient stonework mossy and slightly crumbling around the edges. The Kasbah, a 16th-century Ottoman fortification, overlooks the medina from the high ground; the old quarter below has the quiet, slightly faded feel of a provincial Tunisian town going about its business.
The Regional Museum of Gafsa holds a respectable collection of mosaics and artifacts drawn from local excavations — this region has been inhabited since the Capsian culture of roughly 10,000 years ago, from which the area takes its archaeological name. Gafsa is best understood as a gateway: from here, the road south leads to Tozeur, the great salt lake of the Chott el-Jerid, and the Saharan fringe. Travelers who spend a night rather than passing straight through generally find something to hold their attention.