The Hagia Sophia of Istanbul is no stranger to change -- through the centuries the city's architectural jewel has gone from church to mosque to museum, back to mosque again. This aerial photograph ...

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 ...

Turkey is set to begin restoration and reinforcement work on the dome of the Hagia Sophia, in one of the biggest repair ...