A primitive mosaic floor is believed to date from the church's construction in the 6th century, during the reign of Justinian. Wall mosaics were added as part of a reconstruction in the 11th century, after an earthquake toppled the original church, and some fine fragments of frescoes date from the Byzantine era. In a controversial move, authorities converted the museum into a mosque in 2011. Try to arrange your visit outside of prayer times, when you can explore the site freely and take photographs.
Atatürk Cad. and Kılıçaslan Cad., İznik, 16860, Turkey