Turkey has begun a new phase in sweeping 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.

It's known for its history as a Christian basilica for almost 1,000 years before becoming a mosque during the Ottoman ... the main dome and the main arches, especially due to the expected Istanbul ...

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.

“At the end of these three years, we have focused on the seismic safety of Hagia Sophia, the minarets, the main dome and the main arches ... was turned into a mosque with the 1453 Ottoman ...