Short answer: The Basilica of St. John is the ruin of a vast 6th-century church on Ayasuluk Hill in Selçuk, about 3.5 km (2 miles) by road from the ancient city of Ephesus. Emperor Justinian built it over the grave where, by a tradition recorded in the late 2nd century, the Apostle John was buried. Today you walk through the outline of the church to the marked tomb, with the Isa Bey Mosque, Selçuk's castle and the Temple of Artemis site all within view. A visit takes 30 to 45 minutes.
The basilica stands on Ayasuluk Hill, whose name comes from the Greek Hagios Theologos ("Holy Theologian"), one of the traditional titles of John. It was one of the largest churches of its day, and it was built partly with marble taken from the Temple of Artemis, one of the most direct material connections in the ancient world between a pagan Wonder and a Christian monument. For the complete Ephesus area visitor guide, see the Ephesus ancient city complete guide.
John in Ephesus: The Historical Tradition
The tradition associating the Apostle John with Ephesus is one of the better-documented connections between an early Christian figure and a specific city — not uncontested, but significantly more textually grounded than many Christian site traditions.
The key sources: Irenaeus of Lyon (late 2nd century) says that John, "the disciple of the Lord, who also had leaned upon His breast," published his Gospel while living at Ephesus, and that he stayed in the city until the reign of Trajan (98–117 AD). As a young man Irenaeus had heard Polycarp of Smyrna teach, and he recalls Polycarp describing his own contact with John. Around 190 AD, Polycrates, bishop of Ephesus, wrote to the bishop of Rome that John "sleeps at Ephesus," meaning that he was buried there. Eusebius of Caesarea (early 4th century) preserved these texts and records the tradition as established.
The Gospel of John and the three Epistles of John, and the Book of Revelation (addressed to seven churches in Asia Minor, of which Ephesus is the first named), are associated with this tradition — though the scholarly consensus is that these texts may represent a "Johannine school" of authorship rather than a single hand. For every passage that names Ephesus, see Ephesus in the Bible.
Ancient writers also left a puzzle. Papias, bishop of Hierapolis in the early 2nd century, names two Johns: the apostle and a "John the elder." In the 3rd century, Dionysius of Alexandria reported two tombs at Ephesus, each said to be John's. Church tradition identifies the John of Ephesus with the apostle; some historians think the John remembered there was the elder. Either way, by the late 2nd century the church of Ephesus pointed to John's grave, and tradition places that grave on Ayasuluk Hill.
The tradition that Mary accompanied John to Ephesus — which underlies the House of Virgin Mary site — derives from the Gospel of John's crucifixion account, in which Jesus commits his mother to the Beloved Disciple's care. The Johannine community at Ephesus is historically real; the specific sites associated with it are matters of tradition.
The Earlier Church and Justinian's Rebuilding
Before Justinian's 6th-century basilica, there was an earlier church on the site. A 4th-century structure — modest in scale — had been built over the location identified as John's tomb. This earlier church was already a pilgrimage destination by the time Justinian decided to replace it.
Justinian I (reigned 527–565 AD) undertook one of the most ambitious building programs in Byzantine history, including the Hagia Sophia in Constantinople. The Basilica of St. John was part of this program: a massive new church on Ayasuluk Hill, begun by 548 and finished by 565, with a cross-shaped plan modeled on the Church of the Holy Apostles in Constantinople and a long nave flanked by side aisles.
The dimensions at completion: about 130 meters long and 65 meters wide, among the largest churches of the period. The roof was covered by six domes (the central dome and five subsidiary ones over the nave and transepts). The walls were built of brick and stone; inside, the walls and piers were faced with colored marble and the vaults were covered with mosaics. Look at the capitals of the nave columns: some still carry the monograms of Justinian and his empress, Theodora.
Construction required enormous quantities of marble. A significant portion came from the Temple of Artemis site, which by the 6th century had been substantially dismantled. The column drums and architectural elements of the pagan Wonder were incorporated into the walls and columns of the Christian church. You can sometimes identify Artemision-origin material by the proportions of the column drums — slightly different from standard 6th-century Byzantine columns.
The Tomb of John
The traditional site of John's tomb is marked by four columns arranged in a square at the eastern end of the nave, at the crossing of the nave and the transept. These four columns are among the most clearly visible surviving elements of the basilica today — they still stand to significant height.
The tomb itself is below floor level — a crypt marked by the four columns above. Excavations in the 20th century documented the crypt structure. No physical remains of the Apostle were found; the tradition is that the relics were moved or dispersed in earlier periods. The absence of relics does not affect the site's traditional significance — the location of the tomb, rather than its physical contents, is what the tradition commemorates.
What Survives Today
In the early 14th century, Turkish emirs of the Menteşe and then the Aydın principality took Ayasuluk, and the great church was turned into a mosque. Earthquakes and centuries of stone robbing then reduced it to ruins. The Isa Bey Mosque, built in 1374–75 just below the basilica terrace, also reused older stone: its large columns are believed to have come from the Harbor Baths of ancient Ephesus.
What you see today at the site: the four tomb columns still standing, several nave columns re-erected during 20th-century anastylosis work, substantial wall sections at the western facade and around the apse, and the platform of Ayasuluk Hill with its panoramic view over the Ephesus plain, the former harbour plain, and the minaret of the Isa Bey Mosque directly below.
The view from the basilica terrace is, practically speaking, the best elevated view of the Ephesus area available to visitors: the entire archaeological landscape is spread below, with the Selçuk plain beyond it and the silhouette of Büyük Menderes (Meander River) valley in the distance.
Isa Bey Mosque: The Adjacent 14th-Century Monument
Immediately below the basilica terrace, visible from the hill, is the Isa Bey Mosque (1374–75). It was built for Isa Bey of the Aydınid dynasty, the Turkish principality that ruled Ayasuluk before the Ottomans, by an architect from Damascus. It is one of the finest mosques of that period in Turkey: a large courtyard mosque whose plan follows the Great Mosque of Damascus.
The mosque and the basilica together on Ayasuluk Hill span eight centuries of religious architecture, Byzantine Christian and Turkish Islamic, in direct visual proximity. This layering of traditions is characteristic of the Selçuk and Ephesus area as a whole, and the Isa Bey Mosque deserves attention in its own right, not merely as a footnote to the basilica visit.
Visiting the Basilica of St. John
Where: On Ayasuluk Hill in the center of Selçuk, on St. Jean Street.
How far from Ephesus: About 3.5 km (2 miles) by road from either gate of the Ephesus archaeological site, a 5-to-10-minute drive. On foot from the Lower Gate it takes about 45 minutes, mostly along the road.
Next to it: The Isa Bey Mosque stands just below the basilica, and Ayasuluk Castle, Selçuk's hilltop fortress, rises right above it (the castle has its own entry on the official museum site, with shorter opening hours). The site of the Temple of Artemis lies on the flat ground at the foot of the hill, in view from the terrace, and the Ephesus Museum is less than 10 minutes' walk away in the town center. The House of the Virgin Mary is about 9 km away by road.
Hours and tickets (as of October 2026): The Ministry of Culture and Tourism's official museum site, muze.gov.tr, lists the basilica as open every day from 08:00 to 18:00, with the ticket office closing at 17:30, and an entry price of €6. Hours change with the season, so check muze.gov.tr or our Ephesus entrance fee guide before you go. The guide also covers the combined tickets and museum passes that include the basilica.
Time: 30–45 minutes is sufficient for the basilica itself; add 15 minutes if you visit the Isa Bey Mosque below.
Is it worth it? For Christian travelers, yes: this is the traditional tomb of one of the twelve apostles, and the terrace gives the best elevated view of the Ephesus area. It is usually much quieter than the main ruins. If you have only a few hours in port, see the ancient city of Ephesus first and add the basilica if time allows.
Photography: The basilica is photogenic at multiple scales — the four tomb columns against the open sky, the long nave looking east toward the apse, and the wide-angle view from the terrace. Morning and late afternoon both work; the hilltop location means no dramatic low-sun shadow effects at ground level.
Combining with other sites: The basilica fits naturally in a day that includes the House of the Virgin Mary, the other site tied to the tradition of John at Ephesus. Add the Temple of Artemis on the plain below the hill and you can follow the area's religious transformation from pagan to Christian in a single day.
On a private Ephesus tour, the basilica and mosque can be incorporated into a full-day itinerary — the material chain from Artemision marble to basilica columns is one of the most vivid demonstrations of historical continuity and rupture available anywhere in Turkey. Several of our Ephesus and House of the Virgin Mary pilgrimage tours include the basilica as a stop.
Frequently Asked Questions
Is John's tomb really at the Basilica of St. John?
The tradition is well-documented and the location was venerated as John's tomb from at least the 4th century. No physical remains were found in 20th-century excavation. The tradition places the apostle's death at Ephesus; the specific site on Ayasuluk Hill has been continuously identified with that tradition.
What is Ayasuluk?
The Turkish name for the hill and the Basilica site, derived from the Greek Hagios Theologos ("Holy Theologian") — one of the traditional titles of the Apostle John. It was also the name of the town below until 1914, when it became Selçuk; see our guide to the meaning and history of the name Ephesus.
What was the Isa Bey Mosque built from?
Partly from stone taken from older buildings. Its large columns are believed to have come from the Harbor Baths of ancient Ephesus, and the columns of its courtyard were also taken from ancient structures. Reusing the building material of earlier structures was routine in the Selçuk area for centuries.
How do I get to the Basilica from Ephesus?
The basilica is about 3.5 km (2 miles) by road from either Ephesus gate, a 5-to-10-minute taxi ride. Walking from the Lower Gate takes about 45 minutes. It is in Selçuk town center, a short walk from the Ephesus Museum.
Where is the Apostle John buried?
Tradition places John's tomb at the Basilica of St. John, on Ayasuluk Hill in Selçuk — at the eastern end of the nave, marked by four columns standing at the crossing of the nave and transept. The site has been venerated as his tomb since at least the 4th century.
Did St. John live in Ephesus?
Early Christian writers say he did. Irenaeus of Lyon, writing in the late 2nd century, says John published his Gospel while living at Ephesus and stayed there until the reign of Trajan (98–117 AD). Christian tradition has always identified this John with the apostle. Some historians think the John remembered at Ephesus was a second John, known as John the Elder, so the apostle's life there rests on tradition more than on proof.
Why is St. John buried in Turkey?
Because ancient Ephesus, where tradition says John spent his last years and died, lies in what is now western Turkey, next to the town of Selçuk. In John's time it was a leading city of the Roman province of Asia. Around 190 AD the bishop of Ephesus, Polycrates, wrote that John "sleeps at Ephesus," and the grave on Ayasuluk Hill became a major pilgrimage shrine of the Byzantine world.
What survives of John's tomb today?
The four marker columns are still standing, and the crypt beneath them, documented in 20th-century excavations, sits below floor level. No physical remains were found there; tradition holds that the relics were moved or dispersed in earlier centuries.
What did Justinian build over the tomb?
Justinian I replaced an earlier, more modest 4th-century church that already stood over the tomb with a much larger basilica, begun by 548 and finished by 565. It was one of the largest churches of its time.
Did St. John take Mary to Ephesus?
The Bible does not say. John 19:26–27 records that Jesus entrusted his mother to the beloved disciple, who took her into his home, but it names no place. The belief that Mary spent her last years near Ephesus was revived in the late 19th century, when the House of the Virgin Mary was found by searchers following the visions of Anne Catherine Emmerich. An older tradition places her last years and her tomb in Jerusalem, at the foot of the Mount of Olives; no tomb of Mary is shown near Ephesus. The Catholic Church has never ruled on the house's authenticity, though three popes have visited it. See our House of the Virgin Mary guide.
Where was John when he wrote Revelation?
On Patmos, a small Greek island in the Aegean Sea. Revelation 1:9 says its author, John, was "on the island of Patmos because of the word of God and the testimony of Jesus." Irenaeus dates the vision to the end of Domitian's reign (81–96 AD), and Clement of Alexandria, quoted by Eusebius, says John returned to Ephesus after the emperor's death. Tradition identifies this John with the apostle, though as early as the 3rd century Dionysius of Alexandria thought Revelation was written by a different John.
Who was Saint John of Ephesus?
Usually this means John the Apostle: a Galilean fisherman, son of Zebedee and brother of James, and one of the twelve disciples. Church tradition identifies him with the "disciple whom Jesus loved," credits him with the Gospel of John, three letters and Revelation, and says he led the church of Ephesus in old age and was buried there. Many modern scholars doubt that he wrote these texts. The name also belongs to a different man: John of Ephesus (about 507–588), a Syriac Orthodox bishop and one of the earliest historians to write in Syriac.
Part of the Ephesus ancient city complete guide. For the nearby religious sites, see the House of Virgin Mary guide and Temple of Artemis guide.
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