Basra Old Mosque or Imam Ali Step Mosque

The old Basra mosque or Imam Ali Step Mosque, which is the first mosque in Islam outside Mecca and Medina, was built during the reign of Caliph Omar bin Al-Khattab by Utbah bin Ghazwan, the governor of Basra. Reconstructed in the caliphate of Omar bin Abdul Aziz Date of commencement of construction: 635 AD

Minaret height: 30 m

Dome height: 15 m

Worshipers: 10,000

Number of minarets: 1+ (step beacon)

Number of domes: 2