Fortino di Mazzallakkar, Arab fortification in Sambuca di Sicilia, Italy.

The Fortino di Mazzallakkar is a ruined Arab fort with a square plan and a round tower at each corner. The walls reach about 4 m in height, and the towers carry limestone domes with a pointed ornament, perhaps once shaped like a flame or a half-moon. Slits pierce the towers.

The structure was built around 830 AD during Arab rule in Sicily and protected the territory of Zabut. Its role changed dramatically when the Carboj dam was completed in the 1950s.

The fort's name, Mazzallakkar, is Arabic, and the site lies in the Mulini zone, named for the mills once turned by the waters of the Rincione stream between the Castellazzo hill and Torre Cellaro. The corner towers carried limestone domes with a pointed ornament, possibly shaped as a flame or a half-moon.

The fort is privately owned and visits require prior arrangement, as access depends on water levels of Lake Arancio. It is wise to contact ahead to check conditions before planning a visit.

The fort's towers once had pointed stone ornaments, possibly shaped like flames or half-moons, now lost. The limestone domes and firing slits survive, but thermal swings and hydro-geological subsidence are steadily eroding what the sources call the only structure of its kind in Sicily.