Cordoba is a great example of geography and engineering during the Golden Age because it was a great city. It was chosen to be the capital of the Caliphate of Cordoba. In 785, Abd al-Rahman, the ruler of the Caliphate of Cordoba, ordered the building of a new mosque. Now, in Spain, they call it La Mezquita. Even now, it is still a sacred site in the great city of Cordoba.During the Golden Age, Cordoba created many goods, especially silk. Cordobas fame spread all the way to Germany! Cordoba had a stable economy due to its rich agriculture and architecture. Also, it was home to quite a few engineering breakthroughs, like the water wheel. Also, in Cordoba, engineering was taken very seriously. It soon became a capital of learning and education, and it was very famous for it.