Being founded in 849, the Great Mosque of Sfax is located in the center of the Medina in Sfax. Under the Turkish rule it was again rebuilt in 11th century and was completed in the year 1759. The mosque is fully built with sandstone, marble and wood based on sculpted stone and reused marble architectural pattern.

Nestled beautifully in the prosperous commercial district, this place of worship features nine-aisled rectangular courtyard, twelve-bayed prayer hall and vaulting borne on antique columns. Fully decorated in the age old Turkish style, the beam of one of the windows was decorated with the Bzantine marble plaque.

While Great Mosque of Sfax is presently approached through a side door on the northern portico. On the right -hand side of the terrace, a sculpted position bearing inscription serves as a mihrab. Being known as ancient monument from the Ottoman era, the prayer halls in the mosque adds five naves in which the central one has two cupolas. At the front of the mosque, there is a square based minaret at the north-western corner with two superimposed towers and a lantern-turret. The mosque is opened for the non-Muslims people also, though they can enter only up to the inner courtyard.