By Mr.Ashayeri (JSI2429)

The Shrine Imam Reza (as) or the Shrine of Razavi is the burial place of Ali bin Musa al-Reza, the eighth Imam of Imami Shiites. This place, which is located in the center of Mashhad in Razavi Khorasan, Iran, is revered as a “sanctuary” and a holy place for Imami Shiites. Every year many pilgrims come to visit this shrine.
The Imam Reza shrine , romanized: Haram-e Emâm Rezâ, lit. ’Sanctuary of Imam Reza’) in Mashhad, Iran, is a complex which contains the mausoleum of Imam Reza, the eighth Imam of Twelver Shias. It is the largest mosque in the world by area. Also contained within the complex are the Goharshad Mosque, a museum, a library, four seminaries,a cemetery, the Razavi University of Islamic Sciences, a dining hall for pilgrims, vast prayer halls, and other buildings.
The complex is a tourism center in Iran and has been described as “the heart of the Shia Iran with 25 million Iranian and non-Iranian Shias visiting the shrine each year, according to a 2007 estimate.The complex is managed by Astan Quds Razavi Foundation and currently headed by Ahmad Marvi, a prominent Iranian cleric.
The shrine itself covers an area of 267,079 square metres (2,874,810 sq ft) while the seven courtyards which surround it cover an area of 331,578 square metres (3,569,080 sq ft), totaling 598,657 m2 (6,443,890 sq ft).Every year the ceremony of Dust Clearing is celebrated in the Imam Reza shrine.