The Cathedral of Hierapolis, nestled within the ancient city of Hierapolis in Pamukkale, Turkey, is a remarkable example of early Christian architecture. Constructed in the 4th century AD, this large basilica-style structure features a central nave and two side aisles, reflecting the Roman influence on early church designs. Serving as a vital religious hub during the Byzantine period, the cathedral’s ruins include columns, marble fragments, and mosaic remnants. Positioned near the city’s main street, it offers visitors a glimpse into the spiritual and cultural significance of ancient Hierapolis.