This skull-shaped mask was made to be used in a ritual involving the Aztec god of death.

An Aztec burial mask housed in the British Museum, crafted from a mosaic of precious stones, depicts a face with boils.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Karan Lal, MD, is a double board-certified adult, pediatric, and cosmetic dermatologist at Schweiger ...