The chilling Sanctuary of Tophet was first excavated in 1921. French archaeologists uncovered a sacrificial site and burial ground, where it's believed Carthaginian children were sacrificed to the deities Baal Hammon and Tanit - a stele now in the Bardo Museum shows a priest carrying a child, perhaps to sacrifice. It's an extraordinary, haunting place, with a mass of stubby stele engraved with simple geometric shapes and symbols under shady trees.