Imam Ali Mosque
Basra, Iraq
The Imam Ali Mosque, also known as the Old Mosque of Basra and as the Jami Khatwa ʿAli, is the first mosque that was built in the historical setting of Basra (located 12 kilometres (7.5 mi) west of the current city center), in the Basra Governorate of Iraq. Completed in c. 635 CE, it is among the oldest mosques in the history of Islam; reputedly, the third Islamic mosque built, and the first mosque outside Mecca and Medina. Remnants of this 7th-century structure remain, whilst a new structure was completed in 2000. Predominately Shi'ite, the congregational mosque is sometimes used by Sunni Muslims.
Mosque data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).