One of the world’s most famous religious buildings, Istanbul’s Hagia Sophia was extraordinary when it was built in the sixth ...

Turkey has begun a new phase in restorations of the nearly 1,500-year-old Hagia Sophia in Istanbul, focusing on preserving the monument’s historic domes from the threat of earthquakes.

The current Hagia Sophia was built in the 6th century when Constantinople — as Istanbul was then called — was the heart of the Orthodox Christian Byzantine Empire that emerged as Ancient Rome ...

Istanbul, Turkey (CNN) — Whether you’re a believer or not, visiting Hagia Sophia is a spiritual experience. The architectural genius of this place of worship — which was built as a church in ...