This church at Dura-Europos is undoubtedly the most significant structure in the history of Christian architecture prior to Constantine. It is the earliest complete church building extant and contains some of the earliest Christian frescoes outside of the Roman catacombs. The private residence was modified by removing one interior wall in the dining area, creating a larger room for Christian services. A small dais at the eastern end of the hall probably served as the worship center. Benches were