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

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 ...

The Hagia Sophia Grand Mosque is a Muslim place of worship — but that is not the reason it attracts so much attention. For almost 1,000 years, it was a Christian basilica, the largest and most ...

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 ...