The most significant surviving monumental projects of this period were undertaken outside of the imperial capital. The church of Hagios Demetrios in Thessaloniki was rebuilt after a fire in the mid-seventh century. The new sections include mosaics executed in a remarkably abstract style. The church of the Koimesis in Nicaea (present-day Iznik), destroyed in the early 20th century but documented through photographs, demonstrates the simultaneous survival of a more classical style of church decoration. The churches of Rome, still a Byzantine territory in this period, also include important surviving decorative programs, especially Santa Maria Antiqua, Sant'Agnese fuori le mura, and the Chapel of San Venanzio in San Giovanni in Laterano. Byzantine mosaicists probably also contributed to the decoration of the early Umayyad monuments, including the Dome of the Rock in Jerusalem and the Great Mosque of Damascus.