Grave worshiping
A shrine at the grave of Saint Makhmud Azam in Uzbekistan
Grave worshiping is a custom in some religious groups of praying at the grave of a saint.
Islam
In some countries, the Mausoleum of Sufis have been turned into pilgrimage sites where pilgrims pray to the saint. Some Muslims believe that dead saints can intercede to God and help them at times of distress. Others consider this to be an act of major shirk (polytheism).