The Wadi Al-Salaam (Valley of Peace) cemetery in Najaf, Iraq, is reputed to be the largest cemetery in the world. The remains of millions of Shi'ite Muslims are buried there, and more than half a million more are interred each year. Shi'a from all over Iraq seek to be buried in the Valley of Peace, which neighbors the Imam Ali Mosque, one of the holiest Shi'ite sites.