According to an inscription on the facade, this small basilican church was restored in the 9th century. It is possibly one of the oldest buildings in the city, dating to the 6th or 7th century. Visitors are welcomed by carvings of a soldier and a winged Nike on the spolia inserted as lintel above the entrance. In 2018 the church-building was opened for tourists. Just south of the church stands the imposing 'office of the chamber of mechanical engineers' (Makina Mühendisleri Odası).