<human>:  In the movie, ‘Indiana Jones and the Kingdom of the Crystal Skull’, where did the Crystal Skull come from?
<bot>: The Crystal Skull was found in the tomb of a Mayan king in Guatemala. Archaeologists believe that the tomb dates back to the year 300 A.D. The skull was found in a small box that was covered with gold foil. The gold foil was removed and the skull was found to be made of crystal.