Iglesia de San Sergio y San Baco

The temple was commanded to lift by Justinian I, is made of brick and mortar, brick has a dome 16 meters in diameter and 22.5 meters high, between the palace of Hormisdas (Justinian's house before his ascension to throne) and the church of St. Peter and St. Paul in Estanbul. Justinian's nephew was accused of treason against the throne and sentenced to death. But the saints appeared in a dream to Justinian and Justinian claimed innocence and was was released. In gratitude to the saints, Justinian, promised to dedicate a church to the martyrs was once proclaimed emperor.