The Sousse Medina is a good place to do some of your souvenir shopping, and is just about the right size to not get too tired while walking about. The Sousse Medina is located on rising ground just above the Sousse Harbor. The most intriguing thing is that the 2km thick walls that go for 1.25 miles were erected in the year 859. Town occupants didn't stop there though. They renovated and strengthened the walls even more in 874 and then again in 1205.
You might recognize the dressed stone in the walls if you happen to be an ancient history buff. The huge rough blocks came from ancient Roman buildings. The Medina originally had six gates, but now only two are still standing. The two surviving are called Bab el Khabli and Bab el Gharbi. But gates aside, you can wander for hours in the Sousse medina and never get bored. It's smaller than some medina's you'll find, but big (765 yards x 545 yards) enough to offer a good selection of merchandise. It is also an outstanding example of Arab architecture that has remained unchanged over the hundreds of years of its existence.