Named for its closeness to the Christian religious complex discovered and excavated as part of the international campaign "Save Carthage" conducted under the aegis of UNESCO, this small museum shows in a didactic way material evidence of the history of the city, the metropolis of ancient Africa: from the Punic period to the Middle Ages, but mainly the Roman, early Christian and Byzantine antiquities.
This includes mosaics from the early fifth century which decorated a rich house near the Museum called "house of Greek charioteers": the theme chosen by the sponsor depicts coachmen whose names are inscribed in Greek, belonging to four rival factions accompanied by emblems of victory (palms, crowns ...). It is from this same house that comes the opus sectile paving (composition of marble of different colors cut and inlaid into walls and floors to make a picture or pattern) and fragments of mosaics with a head of Nereid or acanthus leaves.
Other mosaics on display adorned the floor of the neighboring church (the plan is on display) which had a baptistery of octogonal plan still visible on the premises. Decoration include geometric, floral and particularly symbolic themes: cantharus at the corners of the mosaics from which vine stocks and plant motifs spread out. A peacock occupies the central part of the mosaic. A bronze cross and a bone statuette representing an apostle date from this same early Christian period...
Ancient building materials and decorative elements are widely present: vault tubes (lost formwork), architectural elements (Corinthian and Byzantine capitals), terracotta tiles, polychrome stucco, samples of local or imported marble.
Testimonies on daily life come in several forms: ceramics (amphorae, dishes, jugs ...), coins. A note is devoted to water tanks, one of which is in the basement of the museum. Finally, the Carthaginians' infatuation with games is reflected in lead plaques from the city's circus, bearing prayers or magic formulas of bad luck used by the opposing chariot racing teams (3rd -4th centuries).