Mahdia is an ancient city of Tunisia, famous for its Medina and although its walls are not very old, there remain some interesting buildings. Gate SKIF-El-Kala fortress gates, leading onto a Central Cairo square. They were built by the ruling Fatimid dynasty in the tenth century, as was customary in the Middle ages, facing towards the mainland. They were built for protection as a defensive structure and as a gate leading to the Palace of the rulers. When the Spaniards, leaving in 1554, destroyed the wall, the Black gate, or the gate of SKIF-El Kala, they didn't touch, but they had to restore. After the gate starts smiity winding corridor with a length of 21 meters.

The gates were constructed in such a way that the invaders coming from the sea, had little chance to get into the city - they had to go to the gate on foot and this was the only route of entry to the city. At this time, the soldiers stationed on the walls, could hit the top part of the army - arrows, boiling water, hot oil. Getting to the gate of enemies block the path for six descending wrought-iron lattices.

If you turn on a stone staircase from the aperture in the gate, then it is possible to climb to the roof of the corridor with terraces, from which a magnificent panorama of the city with the surrounding area and always busy port. Also, once a week near the gate of SKIF-El Kala unfolds one of the famous bustling city bazaars with small shops and restaurants. You can buy a variety of goods, including Souvenirs with the image of the gates themselves.