Detail of Jamb 04E, El Castillo, Chichen Itza, Mexico.
Mayan. Skeletal warrior.
Rubbing image by Merle Greene Robertson.
Copyright 1995 Pre-Columbian Art Research Institute.

One myth tells how Quetzalcoatl, the feathered serpent god, went to this land of Mictlan. He journeyed in the Fifth Sun in order to restore humankind to life from the bones of those who had lived in the previous four eras.