Final answer:
A series of stepped, rectangular platforms with a temple at the top is called a ziggurat. They were common in ancient Mesopotamia and served as religious structures.
Step-by-step explanation:
A series of stepped, rectangular platforms with a temple at the top is called a ziggurat. Ziggurats were common in ancient Mesopotamia and were built as religious structures. They were made of mud-brick and had multiple levels or platforms, with a temple or shrine at the top. The ziggurats served as a connection between the heavens and the earth, and were used for worship and rituals.
Learn more about Ancient Mesopotamia