Not every Christian symbol has its exact pagan counterpart, though all are within the general language of the visual arts commonly practiced within the Roman empire. The House Church at Dura furnishes a remarkable selection of free adaptations of themes also found at Rome. Each is a picture-symbol of the biblical even without a direct iconographic antecedent but within the style of the period. Baptistry, house church in Dura Europos. Yale University Art Gallery.