Imam reza shrine in mashhad iran max

The imam reza shrine in mashhad; iran is a complex which contains the mausoleum of imam reza; the eighth imam of twelver shiites. it is the largest mosque in the world by area. the shrine itself covers an area of 267;079m2 while the seven courtyards which surround it cover an area of 331;578m2 - totaling 598;657 m2 (6;443;890 sq ft).