Along with superstars like Harrison Ford, Cate Blanchett, and Shia LaBeouf, the newest Indiana Jones movie promises to showcase one of the most enigmatic classes of artifacts known to archaeologists, crystal skulls that first surfaced in the 19th century and that specialists attributed to various "ancient Mesoamerican" cultures. In this article, Smithsonian anthropologist Jane MacLaren Walsh shares her own adventures analyzing the artifacts that inspired Indiana Jones and the Kingdom of the Crystal Skull (in theaters May 22), and details her efforts tracking down a mysterious "obtainer of rare antiquities" who may have held the key to the origin of these exotic objects. read more at archaeology.org