This article lists mosques from around the world by available capacity, that belong to any Islamic school or branch, that can accommodate at least 15,000 worshippers in all available places of prayer such as prayer halls (musala), courtyards (ṣaḥn) and porticoes (riwāq). All the mosques in this list are congregational mosques – a type of mosque that hosts the Friday prayer (ṣalāt al-jumuʿa) in congregation (jamāʿa).
Al 'Aqsa is the second oldest mosque in Islam after the Kaaba in Mecca and is third in holiness after the mosques in Mecca and Medina. It holds up to 400,000 worshippers at one time.
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