Ουρ, also known as Ur, was an important city in ancient Mesopotamia, located in present-day Iraq. It was a significant center of trade and culture during the Sumerian period, flourishing around 3000 BCE. The city is famous for its impressive ziggurat, a massive step pyramid that served as a temple dedicated to the moon god Nanna. The archaeological site of Ουρ has provided valuable insights into early urban life, including advancements in writing, architecture, and governance. Excavations have uncovered artifacts such as pottery, jewelry, and cuneiform tablets, which highlight the city's role in the development of civilization in the region.