Stela at the Structure I, detailed view, Calakmul Archaeological Site, Campeche State, Mexico

The Tzompantli, Platform of the Skulls, Chichen Itza, Yucatan State, Mexico

Rock art carving in the mountains of Avdz?r, Niger, Western Africa

Monument, Chinchorro Mummies, UNESCO World Heritage Site, Camarones Valley, northern Atacama desert, Chile, South America

Chapel of Bones, Evora, Alentejo, Portugal, Europe