Sfax preserves what Tunis and Kairouan lost: an unbroken 2.5 km rampart, an Aghlabid mosque founded in 849 AD, and merchant mansions still standing over their courtyards. Add Roman Thyna and Punic Kerkennah and you get 2,500 years in one compact city.
Founded 849 AD under Aghlabid emir Abu Ibrahim Ahmed, rebuilt 988 by the Zirids. The minaret copies Kairouan's three-tiered square tower; the eastern façade carries Kufic inscription bands and blind arcading. Non-Muslims view the exterior only; free.
The 2.5 km double wall begun in 859 AD by Aghlabid governor Ali ibn Salem is the most complete Arab enceinte in Tunisia. Bab Diwan, the southern customs gate, was blown open by Allied bombing in 1943 and rebuilt with its twin arches.
The southeastern corner bastion of the Ksar, raised in the 17th century over Aghlabid foundations, once signalled ships with beacon fires. Its terrace gives the only elevated view over the Medina's flat roofs, minarets and the old port beyond.
The northwest citadel guarded the Medina from the 9th century and served as the Ottoman garrison seat. Inside, the museum lays out Sfaxian building technique — lime plaster, vaulted qaa rooms, courtyard drainage — with plans of the walled city.
A 17th-century mansion of the Jellouli dynasty, tax farmers and later beylical governors. Painted cedar ceilings, Andalusian tilework, a marble courtyard and rooms staged with wedding costume, kohl flasks and calligraphy tools.
Laid out after the French took Sfax by naval bombardment in July 1881, the grid outside Bab Diwan carries Art Deco and neo-Moorish façades, the 1930s Hotel de Ville and the old Banque de Tunisie block — a deliberate counter-city to the Medina.
Housed in the 1900s town hall, this collection holds mosaics from Roman Taparura and Thyna, Punic funerary stelae, oil-lamp series and Byzantine capitals — the record of Sfax before the Arab foundation, dug from beneath the modern port district.
French warships shelled the town from this anchorage in July 1881 before landing troops; the quays were then rebuilt to ship phosphate and olive oil out of the interior. Wooden lateen-rigged boats still tie up along the northern basin.
Twelve km south, this was a Roman colonia and the terminus of the Fossa Regia frontier ditch. Surviving are baths with in-situ floor mosaics, a triumphal arch base, Byzantine fortifications and a cistern field over the Gulf of Gabès shore.
The Medina's trades still sit where the 12th-century guild order put them: cloth merchants under the vaulted qaysariya near the Great Mosque, then coppersmiths and blacksmiths hammering in the eastern lanes, with perfumers buffering the mosque.
The Sonotrak ferry from Sfax port reaches these low islands where Hannibal fled after Zama in 195 BC. Roman fish-salting tanks, palm-frond charfia fish traps used since antiquity, and Borj el-Hissar's Byzantine-Norman fort ruin survive.
The northern gate opened onto the caravan road to the olive groves that made Sfax rich from Roman times onward. Outside it, the produce market and the old oil warehouses mark where the interior's harvest entered the walled city.