Under Roman rule, Carthage once again became a great city. Several conferences were held there that contributed greatly to shaping the Christian religion. In the seventh century AD, when Constantinople was threatened by Muslims and barbarians, the emperor Flavius Heraclius even considered moving the capital of the Roman Empire to Carthage. However, thanks to urban redevelopment and population management programs instituted by the Arabs in AD 698 and the Crusaders in 1270, Carthage has been considerably downsized.
St. Louis Cathedral, Carthage
With what appears to be minarets.