Musalla in the context of "Eid prayers"

Musala (Bulgarian: Мусала [mosɐˈɫa]); from Arabic through Ottoman Turkish: from Musalla, "near God" or "place for prayer" is the highest peak in the Rila Mountains, as well as in Bulgaria and the entire Balkan Peninsula, standing at 2,925.42 metres (9,597.8 ft).

With a topographic prominence of 2,473 metres (8,114 ft), Musala is also the 6th highest peak by topographic prominence in mainland Europe. It is also the 3rd most topographically isolated major peak in Continental Europe.

The Aqsa Mosque, also known as the Qibli Mosque or Qibli Chapel, is the main congregational mosque or prayer hall in the Al-Aqsa mosque compound in the Old City of Jerusalem. In some sources the building is also named al-Masjid al-Aqṣā, but this name primarily applies to the whole compound in which the building sits, which is itself also known as "Al-Aqsa Mosque". The wider compound is known as Al-Aqsa or Al-Aqsa mosque compound, also known as al-Ḥaram al-Sharīf.

According to Islamic tradition, a small prayer hall (musalla), what would later become the Al-Aqsa Mosque, was built by Umar, the second caliph of the Rashidun Caliphate. In the reign of the caliph Mu'awiyah I of the Umayyad Caliphate (founded in AD 661), a quadrangular mosque for a capacity of 3,000 worshipers is recorded somewhere on the Haram ash-Sharif.

A congregational mosque or Friday mosque (Arabic: مَسْجِد جَامِع, romanized: masjid jāmi‘, or simply جَامِع, jāmi‘; Turkish: Cami), or sometimes great mosque or grand mosque (جامع كبير, jāmi‘ kabir; Ulu Cami), is a mosque for hosting the Friday noon prayers known as jumu'ah. It can also host the Eid prayers in situations when there is no musalla or eidgah available nearby to host the prayers. In early Islamic history, the number of congregational mosques in one city was strictly limited. As cities and populations grew over time, it became more common for many mosques to host Friday prayers in the same area. In early centuries, the congregational mosque was also a center of social and public life, hosting various other activities in addition to prayers, such as judicial and educational functions.

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 (/æl ˈæksə/; Arabic: الأَقْصَى, romanized: Al-Aqṣā) or al-Masjid al-Aqṣā (Arabic: المسجد الأقصى) is the compound of Islamic religious buildings that sit atop the Temple Mount, also known as the Haram al-Sharif, in the Old City of Jerusalem, including the Dome of the Rock, many mosques and prayer halls, madrasas, zawiyas, khalwas and other domes and religious structures, as well as the four encircling minarets. It is considered the third holiest site in Islam. The compound's main congregational mosque or prayer hall is variously known as Al-Aqsa Mosque, Qibli Mosque or al-Jāmiʿ al-Aqṣā, while in some sources it is also known as al-Masjid al-Aqṣā; the wider compound is sometimes known as Al-Aqsa Mosque compound in order to avoid confusion.

During the rule of the Rashidun caliph Umar (r. 634–644) or the Umayyad caliph Mu'awiya I (r. 661–680), a small prayer house on the compound was erected near the mosque's site. The present-day mosque, located on the south wall of the compound, was originally built by the fifth Umayyad caliph Abd al-Malik (r. 685–705) or his successor al-Walid I (r. 705–715) (or both) as a congregational mosque on the same axis as the Dome of the Rock, a commemorative Islamic monument. After being destroyed in an earthquake in 746, the mosque was rebuilt in 758 by the Abbasid caliph al-Mansur (r. 754–775). It was further expanded upon in 780 by the Abbasid caliph al-Mahdi (r. 775–785), after which it consisted of fifteen aisles and a central dome. However, it was again destroyed during the 1033 Jordan Rift Valley earthquake. The mosque was rebuilt by the Fatimid caliph al-Zahir (r. 1021–1036), who reduced it to seven aisles but adorned its interior with an elaborate central archway covered in vegetal mosaics; the current structure preserves the 11th-century outline.

Eidgah or Idgah, also Eid Gah or Id Gah (Persian: عیدگاه "site of Eid [observances]"; Bengali: ঈদগাহ; Punjabi: عید گاہ; Urdu: عید گاہ; Hindi: ईदगाह) is a term used in South Asian Islamic culture for the open-air enclosure usually outside the city (or at the outskirts) reserved for Eid prayers offered in the morning of Eid al-Fitr and Eid al-Adha. It is usually a public place that is not used for prayers at other times of the year. On the day of Eid, the first thing Muslims do in the morning is gather usually at a large open ground and offer special prayers, in accordance with the Sunnah (traditions of Muhammad). Although the usage of the term Eidgah is of Indian origin, it may be used for the musalla, the open space outside a mosque, or other open grounds where Eid prayers are performed, due to the lack of a specific Islamic term for a site of Eid observance. The Eidgah is mentioned in the famous Bengali poem by Kazi Nazrul Islam, O Mon Romzaner Oi Rozar Sheshe.