CONWY VALLEY, WALES—While searching for a Norman church dating to the A.D. eleventh century, archaeologists digging in Wales appear to have found artifacts related to a Roman Temple instead. The finds date back to the A.D. 2nd and 4th centuries. The site is believed to have been a temple used by Roman soldiers, called a mithraeum, but team members say more investigation needs to be done to confirm that suspicion.