located at the northeastern tip of Cape Bon at the entrance to the Gulf of Tunis ,It is 120 kilometers from Tunis and 80 kilometers from Sicily . Three kilometers to the west of the city, the artificial caves of the Ghar El Kebir site were dug by prisoners or slaves under the authority of Carthaginians and Romans.The blocks of stone that were extracted were shipped by sea to Carthage , on the other side of the Gulf of Tunis . They served for the construction of the Punic city, but also for the construction of the forts of the medina of Tunis . These underground quarries are exploited for nearly 1,000 years. They consist of latomies , huge half-dark caverns carved in the shape of a pyramidwhich was accessed through a narrow upper opening, some of which communicated with each other by narrow passages.