Masjid al-Haram #1

Capacity(worshippers): 820,000 Area: 356,800 m2 (3,841,000 sq ft) Al-Masjid al-Ḥarām (المسجد الحرام (pronounced [ʔælˈmæsdʒɪd ælħɑˈrɑːm] "The Sacred Mosque"), is the largest mosque in the world. Located in the city of Mecca, it surrounds the Kaaba, the place which Muslims turn towards while offering daily prayers and is considered the holiest place on Earth by Muslims. The mosque is also known as the Grand Mosque. The current structure covers an area of 400,800 square metres (99.0 acres) including the outdoor and indoor praying spaces and can accommodate up to 4 million worshippers during the Hajj period, one of the largest annual gatherings...

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Al-Masjid al-Nabawi #2

Capacity(worshippers): 650,000 Area: 400,500 m2 (4,311,000 sq ft) The Mosque of the Prophet (or Prophet's Mosque) (Arabic: المسجد النبوي‎ [IPA /mæsʤıd ænːæbæwiː]), in Medina, is the second holiest mosque in Islam and the second largest mosque in the world after the Masjid al-Haram in Mecca. It is the final resting place of the Islamic Prophet Muhammad. The mosque is considered the second holiest mosque by both Shia and Sunni while the Al-Aqsa Mosque in Jerusalem is the third holiest. One of the most notable features of the site is the Green Dome over the center of the mosque, where the tomb of Muhammad is located. It is not exactly known...

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Imam Reza shrine #3

Capacity(worshippers): 100,000+ Area: 598,657 m2 (6,443,943.95 ft) Imām Rezā shrine (Persian: حرم امام رضا) in Mashhad, Iran is a complex which contains the mausoleum of Imām Ridhā, the eighth Imām of Twelver Shi'ites. Also contained within the complex include: the Goharshad Mosque, a museum, a library, four seminaries,[1] a cemetery, the Razavi University of Islamic Sciences, a dining hall for pilgrims, vast prayer halls, and other buildings. This complex is the center of tourism in Iran, visited by 15 to 20 million pilgrims every year.[2][3] The shrine itself covers an area of 267,079m2 while the seven courtyards which surround it cover...

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