Great Mosque in Samarra, Iraq was built in the 9th century, the 848CE, completed in 52 years during the reign of the Abbasid Caliph al-Mutawakkil (in Samarra) from 847 to 861.
At the time, this mosque is the largest mosque in the world, a high tower, which is a famous tower called al-Malwiya tower is 52 meters with a base width of the spiral tower of 33 meters, and can accommodate eighty thousand worshipers. Mosque didinding or lined with brick walls that surround an area measuring 240 meters long, 158 meters wide and 10 meters high. Walls covered with dark blue panels with glass mosaic.
Tower spiral mosque. This spiral minaret is very popular, and are features that are listed first in historic buildings "Congregational Mosque" Al-Mutawakkil in Iraq, followed by 20 other palace buildings. This proves that the leader or caliph in Iraq at that time really appreciate the development and advancement of architectural art.
Unfortunately, on April 1, 2005, the top Malwiya mosque damaged by a bomb. infasi U.S. in the war to Iraqi state. (such as pictures of ruins mosque, as well) Iraqi officials have stated a claim that U.S. troops had caused significant damage to historic sites in Samarra, including the walls of an ancient palace in Iraq.