Skulls at the Choeung Ek Memorial stupa for victims of the killing fields of the Khmer Rouge

Cambodia, Phnom Penh, Skulls at the Choeung Ek Memorial stupa for victims of the killing fields of the Khmer Rouge.

Mexico, Michoacan, Patzcuaro, Decorated chocolate skulls for Dia de los Muertos or Day of the Dead festivities.

Mexico, Michoacan, Patzcuaro, Altar with display of food and flowers including marigolds for Dia de los Muertos or Day of the Dead festivities.

Mexico, Puebla, Sugar candies in the shape of skulls for Dia de los Muertos or Day of the Dead festivities.

Mexico, Puebla, Sugar candies in the shape of skulls for Dia de los Muertos or Day of the Dead festivities.

Mexico, Puebla, Sugar candies in the shape of skulls for Dia de los Muertos or Day of the dead celebrations.

Mexico, Puebla, Sugar candies in the form of skulls for Dia de los Muertos or Day of the Dead festivities.

Mexico, Federal District, Mexico City, Wall of Skulls or tzompantli, in the Templo Mayor Aztec temple ruins.

Mexico, Federal District, Mexico City, Replica tzompantli or wall of skulls in Templo Mayor Aztec temple ruins.

Mexico, Oaxaca, Traditional black ceramics in the form of skulls.

Mexico, Puebla, Sugar candies shaped as skulls and lanterns for Dia de los Muertos or Day of the Dead festivities.