Basilica of St. John, Ephesus

The Basilica of St. John rises on Ayasuluk Hill above Selçuk and forms part of the UNESCO World Heritage property of Ephesus. The monumental basilica was built in the sixth century under Emperor Justinian I over an earlier memorial site traditionally associated with the tomb of St. John the Apostle.

Its scale and location show how Christian pilgrimage reshaped the sacred geography of Ephesus after the city’s classical period. UNESCO notes that by the fifth century Christian pilgrimage to the Basilica of St. John and other Christian monuments had become an important part of the Ephesus landscape.

The surviving ruins reveal the plan of a large domed basilica, with the presumed tomb area placed at its sacred centre. Christian tradition identifies that burial with St. John; the tradition is ancient and central to the site’s devotional meaning, but Templestan does not present the identity of the tomb as an independently demonstrated archaeological fact.

The basilica is now an archaeological monument rather than an ordinary parish church. Visitors can read it together with nearby Ayasuluk, the Isa Bey Mosque and ancient Ephesus to understand how the area’s sacred importance continued through pagan, Christian and Islamic periods.