Great Mosque of Samarra
Ninth-century mosque that was commissioned in 848 and completed in 851 by the Abbasid caliph Al-Mutawakkil who reigned (in Samarra) from 847 until 861. Was at one time the largest mosque in the world; its minaret, the Malwiya Tower, is a vast spiralling cone 52 m high and 33 m wide with a spiral…