Istanbul, Turkey (CNN) — Whether you’re a believer or not, visiting Hagia Sophia is a spiritual experience ... in an ancient language. The art inside the building is a testament to coexistence.

The Hagia Sophia mosaics are unique and represent the ultimate example of Byzantine craftsmanship. They are the only surviving examples of Byzantine mosaics from such a lengthy time period. They cover ...

There is the Süleymaniye Mosque, built in the 16th century to rival the Hagia Sophia ... inside it and soak in all its glory. "The glorious impression of harmoniously blended space and light ...