Restoration efforts are underway at Hagia Sophia in Istanbul ... materials and techniques that are consistent with Ottoman-era construction to ensure that the dome will be stable and true to ...

The Turkish Ministry of Culture is undertaking a cleaning program of the underground spaces of Hagia Sophia in Istanbul, aiming to make them accessible to the public. The project includes the ...

Tourists flock en masse to the Hagia Sophia for its stunning architecture, glorious interior views and historical significance. Built between 532 and 537, the building was a church for nearly a ...