The Ziggurat of Dur-Kurigalzu was built in the 14th century BC (short chronology) by the Kassite king Kurigalzu.The core of the structure consists of sun dried square bricks. The reed mats are actually every 7 layers of brick, as stated, used for drainage and to assist in holding the bricks together by providing a continuous layer of support. The outer layers of the ziggurat are made from fired bricks. An inscription on one of the fired bricks states that it was laid during the reign of King Kurigalzu II. Today both types of brick, sun dried and fired, are still made in Iraq in the same fashion and used in farm houses.
The ziggurat at Aqar Quf has been a very visible ancient monument for centuries. For camel caravans and modern road traffic, the ziggurat has served as a signal of the near approach to Baghdad. The site has been one of the favorite places where Baghdadi families have gone to picnic on Fridays, even before it was excavated. A small museum, built in the 1960s, has served to introduce visitors to the site. The structure needs renovation, however.
Because of Aqar Quf's easy accessibility and close proximity to the city of Baghdad, it has been one of Iraq's most visited and best known sites. Its ziggurat has been an outstanding monument for centuries, often confused with the Tower of Babel by western visitors in the area from the 17th century onwards.