Hagia Sophia, built in 537 under the Byzantine Emperor Justinian and regarded as one of the most important buildings in the history of world architecture, is the symbol of Istanbul. Today it is open for worship as the Hagia Sophia Grand Mosque and continues to welcome visitors.

For almost a thousand years the world's largest cathedral, it was converted into a mosque after the conquest of Istanbul in 1453, became a museum in 1934 and was turned back into a mosque in 2020. Its vast dome, mosaics, marble columns and calligraphy roundels bring Byzantine and Ottoman heritage together in one space. It stands on Sultanahmet Square, directly opposite the Blue Mosque.

Standing beneath the dome of Hagia Sophia, you feel the weight of fifteen centuries of history at once.

Must-see highlights

• The main dome: The building's symbol, famous for its height and play of light.
• Mosaics and calligraphy: Surfaces where Byzantine and Ottoman art appear side by side.
• Sultanahmet Square: The Blue Mosque, the German Fountain and the Hippodrome area.

Getting there and transfers

Traffic is restricted around Sultanahmet Square; your driver drops you at the nearest suitable point. You can combine Hagia Sophia with the Basilica Cistern and Topkapı Palace on the same day. For a full-day route, see our Istanbul chauffeur programme.

Visiting tips

• Hagia Sophia is a mosque; visitor entry may pause briefly during prayer times.
• Women must cover their hair and wear clothing covering shoulders and knees; men should not wear shorts.
• A separate entrance arrangement and fee apply to foreign visitors; check the current rules before your visit.

Frequently Asked Questions

When was Hagia Sophia built?

The present building was completed in 537 under the Byzantine Emperor Justinian.

Is Hagia Sophia a mosque or a museum now?

It has served as a mosque since 2020; visitors may tour it by following the rules.

Is there a dress code?

Yes. Women must cover their hair, and shoulders and knees must be covered; head scarves may be available at the entrance.

How long does a visit take?

45–60 minutes is enough, excluding queues.

How long does it take from the airport to Hagia Sophia?

About 50–70 minutes from Istanbul Airport in normal traffic.

For transfers and chauffeur service, WhatsApp: +90 545 121 24 94.