When the Hagia Sophia in Istanbul was built in the 6th century, it was the largest building in the world, an engineering marvel. And the unique acoustics inside inspired composers to write 10 ...

The grant opening of Hagia Sophia in Constantinople, the center of Orthodox Christianity for a millennium was held on ...

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 537CE ...

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