Researchers have discovered skulls and other human remains in a submerged cenote considered taboo by locals near the ancient city of Mayapán in Mexico's Yucatán peninsula. The cenote is seen as sacred, and local residents both respect and fear it. Read more about the "haunted" sinkhole, and what archaeologists found: news.nationalgeographic.com/news/2014/01/140116-maya-mexico-yucatan-cenote-bones-haunted-taboo-archaeology-science/ DIVE VIDEOGRAPHERS: Bradley Russell, Rait Kütt, and Lisseth Pedroza Fuentes INTERVIEW VIDEOGRAPHERS: Shannon Sanders and Hans Weise MAPS: Maggie Smith MAPS SOURCE: Proyecto Económico de Mayapán (PEMY) SENIOR PRODUCER: Jeff Hertrick EDITOR: Nick Lunn