Robert Koldewey found one in Borsippa which dates back to the 5th century BC, and the largest of them, known as Chogha Zanbil, was created in Dur Untashi, near Susa, around 1200 BC under the direction of Untash-Gal.
The oldest surviving one is known as Sialk and is located in the suburbs of Kashan. Robert Koldewey found one in Borsippa which dates back to the 5th century BC, and the largest of them, known as Chogha Zanbil, was created in Dur Untashi, near Susa, around 1200 BC under the direction of Untash-Gal. Koldewey also found one that he took to be a temple to Marduk, the name of which, Etemenanki, translates as "The Foundation of Heaven and Earth." Having no interior chambers, it typically possessed a mud-brick core and an exterior covered with baked brick. With about 25 remaining today, FTP, name these step-pyramids of ancient Mesopotamia.
The oldest surviving one is known as Sialk and is located in the suburbs of Kashan.
Ziggurats