The Chora Church, or Kariye Mosque, in Istanbul is one of the finest examples of Byzantine architecture and art, renowned for its stunning mosaics and frescoes. Its history spans over a millennium, reflecting the rich and diverse heritage of the city.

Originally built outside the city walls of Constantinople in the 4th century, the church’s name, "Chora," means "in the country", referring to its rural location. It was incorporated into the city when Emperor Theodosius II expanded the walls in the 5th century. The current structure dates to the 11th century and was extensively renovated in the early 14th century.

After the Ottoman conquest in 1453, the church was converted into a mosque in 1511. Islamic modifications were made, including covering some of the mosaics and frescoes. In 1948, the Chora was secularized and turned into a museum, allowing the rediscovery and restoration of its iconic mosaics and frescoes. In 2020, it was converted back into a mosque, with plans to preserve its artwork.