Aya Sofya Hagia Sophia

Aya Sofya: 1,500 Years of Contested Space

Since May 2026, the entrance fee for Hagia Sophia is €25 for foreign visitors. This is a significant change from the years immediately following the 2020 reconversion to a mosque, when entry was free; the price increase has been met with mixed reactions, but the site remains one of the most extraordinary buildings on earth and worth the admission regardless of what you think about the politics of the reconversion.

The building was completed in 537 AD under the Byzantine Emperor Justinian I, designed by the mathematicians Anthemius of Tralles and Isidorus of Miletus. The dome is 31 metres in diameter and rises 55 metres above the floor - for nearly a thousand years it was the largest dome in the world. The structural solution was revolutionary: a series of half-domes and pendentives distribute the dome’s enormous weight down through the walls rather than requiring massive solid support structures. The ring of 40 windows at the dome’s base floods the interior with light in a way that was designed to suggest the dome was suspended by golden chains from heaven. Justinian reportedly said, on the building’s dedication: “Solomon, I have surpassed thee.”

What Has Changed, What Remains

Hagia Sophia was a Greek Orthodox cathedral for 916 years, from 537 until the Ottoman conquest of Constantinople in 1453. Mehmed II converted it to a mosque; the Byzantine mosaics depicting human figures were plastered over (Islam’s tradition forbids figurative art in mosques). Atatürk converted it to a secular museum in 1934, the mosaics were revealed and restored, and it remained a museum until the Turkish Council of State and President Erdoğan reconverted it to a functioning mosque in July 2020. The mosaics depicting the Virgin Mary and Christ remain visible in the upper galleries. Large circular Ottoman calligraphy medallions, added in the 17th century, face them across the nave.

As of December 2025, a major exterior restoration campaign began, with scaffolding covering significant portions of the facade. The interior remains fully accessible, though some views are affected. The exterior photographs you may have seen of the full building will require patience or a different angle until the restoration is complete.

Visiting Now

Foreign visitors can only access the second floor (gallery level) as of the January 2024 regulations, which separate tourist access from the ground-level prayer areas. The gallery provides an elevated view of the main nave, the mosaics, and the dome that is in some respects better than the ground-floor view. The Deesis mosaic - a large 13th-century fragment depicting Christ, the Virgin, and John the Baptist - is in the south gallery and is one of the finest examples of Byzantine art anywhere. Do not leave without seeing it.

Opening hours are 09:00 to 19:00 daily, last entry at 18:30. The building closes to tourists during the five daily prayer times and entirely on Fridays from noon to 14:30 for Friday prayers. Avoid arriving around these windows; the queue to re-enter after prayers is significant.

Dress code: shoulders and knees covered for both men and women; women do not need to cover their hair unless they choose to, though a light scarf is appropriate. Shoes need not be removed; this changed with the gallery-only visitor access.

Arrive before 10:00 for the quietest experience. Late afternoon, when the low sun enters through the western windows and illuminates the dome, produces the most photogenic interior light.

What to See Nearby

The Sultanahmet district concentrates more historically significant buildings per square kilometre than almost anywhere in Europe.

Topkapi Palace: The administrative and residential centre of the Ottoman Empire for 400 years, from 1465 to the 1850s. The harem section requires a separate ticket. The Treasury includes the Topkapi Dagger and an 86-carat diamond surrounded by 49 others. Plan three to four hours minimum.

Basilica Cistern: The underground Byzantine water reservoir directly behind Hagia Sophia, built in the 6th century, holds 336 marble columns arranged in 12 rows across a subterranean hall. It was renovated in recent years and now includes atmospheric lighting and permanent exhibitions. Entry around 300 TL.

The Blue Mosque: Free entry, though dress code applies strictly and the mosque closes to visitors during prayer times. The interior is notable for its six minarets - an unusual distinction - and 20,000 blue Iznik tiles. Standing inside it immediately after Hagia Sophia, the contrast between the two architectural approaches to religious space is instructive.

Eating and Staying

Staying in Sultanahmet puts you walking distance from the main sites but limits your dining options to tourist-facing restaurants with predictable menus. Beyoğlu, across the Golden Horn, has better food and more interesting streets. The tram connects the two efficiently.

For Turkish food that isn’t aimed at tourists: Karaköy, the neighbourhood at the Galata Bridge’s northern end, has restaurants serving the local fish market trade. Grilled fish with raki at a table facing the Bosphorus is one of Istanbul’s genuinely unrepeatable experiences and doesn’t require a reservation or a particular name.

The Four Seasons at Sultanahmet occupies a converted Ottoman prison and has some of the better rooms in Istanbul for proximity to the main sites. Hotel Empress Zoe has an excellent garden and Ottoman-influenced design at a lower price point. Budget options cluster around the Cankurtaran neighbourhood, immediately south of Sultanahmet.