The site hosted the Second Council of Nicaea in 787 AD, a pivotal moment in Christian theology regarding the veneration of icons.
Excavations revealed a 6th-century mosaic floor featuring intricate geometric patterns hidden beneath the later additions.
The building was converted into a museum in the 1930s before being reconverted into a mosque in 2011.
The structure contains rare examples of early Byzantine masonry techniques using alternating layers of brick and stone.
The iconic minaret was added to the structure during the Ottoman period to signify its transition into a religious site for the Muslim community.
The Hagia Sophia Mosque in İznik, historically known as the Church of Hagia Sophia, is a Byzantine structure dating back to the 4th century. It served as the site of the Seventh Ecumenical Council in 787 AD, which addressed the issue of iconoclasm. Converted into a mosque by Orhan Gazi after the Ottoman conquest of Nicaea in 1331, it underwent several architectural transformations over the centuries. The building features original mosaic floors and 11th-century frescoes that were uncovered during 20th-century restorations. Its architectural style combines early Christian basilica elements with later Ottoman additions. Following a major renovation completed in 2011, the structure was officially reopened as a mosque for active worship. The building remains one of the few examples in the region that reflects the transition from Byzantine church to Islamic mosque.
From the exterior courtyard, capturing the contrast between the Byzantine brickwork and the Ottoman minaret.
Observe the glass floor sections installed over the original Byzantine mosaics for a clear view of the historic layers.
Visit during the shoulder seasons to avoid the heat, as the interior climate can be significantly cooler than the exterior.
Ensure you have a headscarf if you are a woman, as it is an active house of worship.
Avoid visiting during Friday prayer times, as the mosque will be closed to tourists for communal worship.
Visitors must remove shoes before entering the carpeted area. Modest dress covering shoulders and knees is required; head coverings are provided for women at the entrance.
