Occupying the 13th century palace of the Ottoman-era bey (ruler) and renowned for its extensive collection of Roman mosaics, although the (huge) collection covers Tunisia's entire existence from the prehistoric era until the Ottoman days. Exhibits from Carthage, Mahdia, Sousse, many from the Roman period in addition to presentations of Arabian culture old and new. It can be mercilessly hot and stifling in the museum, so bring water. The only bathrooms are on the ground floor, and have attendants asking for change. The museum is segregated into old and new, so be sure to walk around a fair amount looking for new passages to be sure you haven't missed any major areas.