For 10 points, name this church commissioned by Byzantine emperor Justinian in present-day Istanbul.
One artwork in this building employed the tilting technique in Christ's halo; that work is the Deësis wall mosaic. A man bows before Christ seated on a jeweled throne on its Imperial door, which leads into the narthex. With a central dome supported by four pendentives, this building was designed by Anthemius of Tralles and Isidorus of Miletus. Featuring gold tessellai in many of its mosaics, such as one of Empress Zoe and Emperor Comnenus, this building had four minarets added after its conversion to a mosque in 1453. For 10 points, name this church commissioned by Byzantine emperor Justinian in present-day Istanbul.
One artwork in this building employed the tilting technique in Christ's halo; that work is the Deësis wall mosaic.
{Hagia Sophia} or {Ayasofya} [prompt on {Church} of {Holy Wisdom}]