Scattered throughout Northern Japan around the Yamagata Prefecture are two dozen mummified Japanese monks known as Sokushinbutsu, who caused their own deaths in a way that resulted in their mummification. The practice was first pioneered by a priest named Kuukai over 1000 years ago at the temple complex of Mount Koya, in Wakayama prefecture.

Sokushinbutsu - The Bizarre Practice of Self Mummification