What did ziggurats build in the city states of sumer?

Ziggurats were massive stepped structures that served as religious temples in the city-states of Sumer. They functioned as the focal point of worship and were dedicated to the patron gods of the cities, symbolizing the connection between the heavens and the earth. These impressive edifices often housed shrines and were seen as a manifestation of the city's wealth and power, reflecting both religious and political significance in Sumerian society.