Córdoba is 138 kilometers (86 miles) northeast of the city of Seville and is on the Guadalquivir river. Córdoba has a hot-summer Mediterranean climate (Csa in the Köppen climate classification) with the hottest summers of all European cities.
The Romans occupied Córdoba in 206 B.C. The city was very important in the 900s CE as a famous center of Moorish art and culture. The Mezquita de Córdoba is the city's chief landmark. It was built as a mosque (Muslim house of worship) in the 700s and was made into a Roman Catholic cathedral in 1238. More than 1,000 pillars of stone including granite, onyx, marble and jasper support its arches.