Britannica
Sources used in this answer
Why is Hagia Sophia included in the Historic Areas of Istanbul UNESCO World Heritage site?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
Hagia Sophia
A bird's-eye view of Hagia Sophia on the shore of the Bosporus, Istanbul.
The Hagia Sophia is included in the UNESCO World Heritage site known as the Historic Areas of Istanbul because it is recognized as one of the world’s greatest monuments and a central pillar of architectural and cultural history.12
Its significance stems from several key factors:
- Historical and Religious Legacy: For nearly a millennium, it served as the largest cathedral in Christendom and a vital center of religious, political, and artistic life for the Byzantine Empire. Following the 1453 conquest of Constantinople, it was repurposed as a mosque, reflecting the profound religious shifts in the region over centuries.12
- Architectural Innovation: The structure is a masterpiece of Byzantine architecture, uniquely combining a longitudinal basilica with a centralized design featuring a massive dome supported by pendentives.2
- Artistic Importance: The building houses significant mosaics that provide essential scholarly insights into the development of mosaic art following the Iconoclastic Controversy.2