Completed in 537 CE, Hagia Sophia was the religious and cultural center of the Byzantine Empire and, for a time, the largest Christian cathedral in the world. With its innovative pendentive dome ...

which was constructed from 532 to 537 CE, while others are considered older. “The sections located under the portico courtyard are as old as Hagia Sophia, meaning they are 1,500 years old ...

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 ...

Turkey's Hagia Sophia will open to visitors outside prayer times and its Christian icons will remain, religious officials said on Tuesday, after a court ruling paved the way for it to become a mosque.