Holiest sites in Shia Islam
In addition to the three mosques accepted by all Muslims as holy sites, Shia Muslims consider sites associated with Muhammad, his family members (Ahl al-Bayt) and descendants (including the Shia Imams), their companions, and the Prophets as holy places. After Mecca, Medina, and Jerusalem, Najaf and Karbala are the most revered by Shias.
Masjid al-Haram ("The Sacred Mosque"), is a large mosque in the city of Mecca, Saudi Arabia and the second largest in Islam. It surrounds the Kaaba, the place which all Muslims turn towards each day in prayer, considered by Muslims to be the holiest place on Earth.
The current structure covers an area of 356,800 m2 (3,841,000 sq ft) including the outdoor and indoor praying spaces and can accommodate up to 820,000 worshippers during the Hajj period. During the Hajj period, the mosque is unable to contain the multitude of pilgrims, who pray on the outlining streets. More than 2 million worshippers gather to pray during Eid prayers.
According to the teachings of Islam, God in the Quran used the word mosque when referring to the sites established by Ibrahim (Abraham) and his progeny as houses of worship to God centuries before the revelation of the Quran. The first of these spots is Masjid al-Haram in Mecca and the second is Al-Aqsa Mosque in Jerusalem. Before Mecca and Jerusalem came under Muslim control between 630 AD and 638 AD, the site of the Kaaba, which was established by Abraham and Ishmael, was used by non-Muslim Arabs who worshipped multiple gods.
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