What temple did the Sumerians build to honor their chief god?

The Sumerians built ziggurats to honor their chief god, with the most famous being the Ziggurat of Ur. These massive, terraced structures served as temples and were dedicated to various deities, with the Ziggurat of Ur specifically honoring the moon god Nanna. Ziggurats symbolized the connection between the heavens and the earth, reflecting the Sumerians' religious beliefs and architectural ingenuity.