Ulu Mosque (Ulu Cami) is in the Kayseri city centre near the covered bazaar. It is also known as Cami Kebir and is open for worship. The mosque, which is thought to have been built between 1134-1143, is one of the oldest Turkish-Islamic structures in Kayseri. With its plan, it is one of the first examples of the grand mosque tradition of the Great Seljuks in Anatolia.