Ephesus, Church of St John

The sixts century Basilica of St. John the Apostle, built on the site of the Apostle's tomb.

Sources:

1. Ekrem Akurgal, Ancient Civilisations and Ruins of Turkey: From Prehistoric Times Until the End of the Roman Empire, II ed., Istanbul 1970, pp.145-146
2. Francesco D´Andria, The Sanctuary of St Philip in Hierapolis and the tombs of saints in Anatolian cities, in J.R. BRANDT, E. HAGELBERG, G. BIØRNSTAD, S. AHRENS, Lıfe and Death in Asia Minor in Hellenistic, Roman and Byzantine Times. Studies in Archaeology and Bioarchaeology, Oxford and Philadelphia, 2016