Al-Masjid al-Haram: The Grand Mosque of Mecca
Al-Masjid al-Haram is accessible to Muslims only. Non-Muslims are prohibited from entering Mecca — enforced at all checkpoints.
Al-Masjid al-Haram — the Grand Mosque — is the largest mosque in the world and the holiest site in Islam. Built around the Kaaba, the sacred cubic structure that Muslims face during prayer, the mosque has stood in some form since the time of the Prophet Ibrahim and has been expanded by successive Islamic rulers over 14 centuries. Today it can accommodate four million worshippers simultaneously during the Hajj season.
The Kaaba
The Kaaba is a cube-shaped stone structure approximately 15 metres high with sides of 12 by 10 metres, located at the geometric centre of Al-Masjid al-Haram. It is the most sacred object in Islam — the qibla (direction of prayer) that Muslims worldwide orient toward in their five daily prayers.
The Kaaba is draped in the Kiswah — a black cloth embroidered with Quranic verses in gold and silver thread. The Kiswah is renewed each year on the Day of Arafat (Dhul Hijjah 9) during Hajj. The old Kiswah is cut into pieces and distributed to dignitaries and Islamic institutions worldwide.
The door of the Kaaba (Bab al-Kaaba) is on the northeast face, positioned several metres above the ground — accessible by steps that are brought out for rare ceremonies. The interior of the Kaaba is not open to pilgrims; only kings and heads of state are occasionally admitted for ceremonial cleaning.
Islamic tradition on the Kaaba: The Prophet Ibrahim (Abraham) and his son Ismail are credited with constructing or reconstructing the original Kaaba. The Prophet Muhammad cleansed the Kaaba of idols in 630 CE (the year of the Conquest of Mecca) and rededicated it to monotheism.
The Black Stone
Al-Hajar al-Aswad (the Black Stone) is embedded in the eastern corner of the Kaaba at approximately waist height, encased in a silver frame. Pilgrims begin and end each circuit of the tawaf at the Black Stone, touching or kissing it if able to reach it (crowds during peak periods make this difficult). Gesturing toward the Black Stone from a distance is also valid.
The Black Stone’s origin and nature have been debated — it may be a meteorite, though this is not confirmed. Islamic tradition holds that it descended from paradise and was white, darkened over time by the sins of humanity.
The Zamzam Well
The Zamzam Well is located within the mosque complex, approximately 21 metres from the Kaaba. It is now enclosed in a basement structure with pumps distributing water throughout the mosque via taps and dispensers. Pilgrims drink Zamzam water throughout their visit — it is considered blessed, and many take bottles home.
The well’s water originates from the Wadi Ibrahim aquifer. Archaeological investigation has confirmed the well’s antiquity. It has provided water without interruption through recorded history.
The Hateem
The Hateem (also called the Hijr Ismail) is a semi-circular low wall on the northwest side of the Kaaba. The enclosed area within the Hateem is considered part of the original Kaaba — it was included in the original structure built by Ibrahim and Ismail but was not incorporated in the Quraysh reconstruction. Praying within the Hateem is therefore considered equivalent to praying inside the Kaaba itself.
History and Expansion
The mosque has been expanded repeatedly by successive rulers:
- The Caliph Umar ibn al-Khattab conducted the first significant expansion in 638 CE
- The Abbasid Caliph Al-Mahdi expanded it in the 8th century
- The Ottoman Sultan Suleiman the Magnificent added porticoes in the 16th century
- The Saudi government has conducted three major expansion projects since 1955, dramatically increasing the mosque’s capacity
The current structure, with its distinctive clock tower minarets, is the product of Saudi construction projects from the 1980s through to the 2010s. Further expansion is ongoing.
Visiting Al-Masjid al-Haram
Pilgrims perform tawaf (circumambulation around the Kaaba) on the Mataf — the marble floor surrounding the Kaaba — at multiple levels. The ground floor is the most traditional; upper floors provide physical relief from crowds but are further from the Kaaba.
For Hajj planning see the Hajj guide. For Umrah see the Umrah guide. For accommodation near the mosque see the Mecca accommodation guide.
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Frequently Asked Questions
- What is Al-Masjid al-Haram?
- Al-Masjid al-Haram (the Grand Mosque) is the largest mosque in the world and the holiest site in Islam. Located in Mecca, it surrounds the Kaaba — the cubic structure towards which Muslims around the world direct their daily prayers. The mosque can accommodate up to four million worshippers simultaneously during Hajj. Access is restricted to Muslims only.
- What is the Kaaba?
- The Kaaba is a cube-shaped stone building at the centre of Al-Masjid al-Haram. It is Islam's most sacred object — the qibla (direction of prayer) for Muslims worldwide. The Kaaba is draped in the Kiswah, a black cloth embroidered with Quranic verses in gold thread, renewed annually. Islamic tradition holds that the Kaaba was originally built by the Prophet Ibrahim (Abraham) and his son Ismail.
- What is the Zamzam Well?
- The Zamzam Well is located within Al-Masjid al-Haram. According to Islamic tradition, the well miraculously appeared to provide water for Hagar and her infant son Ishmael after Abraham left them in the valley. The well has provided water continuously for thousands of years. Pilgrims drink Zamzam water during their visit — it is distributed in plastic cups throughout the mosque.
- How large is Al-Masjid al-Haram?
- The mosque complex covers approximately 356,800 square metres and can accommodate 1.85 million worshippers at one time outside of Hajj and Umrah seasons. During Hajj, the capacity increases to approximately 4 million with the surrounding plazas included. The mosque has been expanded multiple times, most recently in massive projects in the 1980s through 2020s.