- ... that the early pre-Columbian site of Xochitecatl (pictured) in Mexico was abandoned for centuries after the Popocatepetl volcano erupted around 150 AD?
- ... that the Mesoamerican archaeological site of Quelepa in eastern El Salvador was distinguished by its unusual ramped pyramids?
- ... that human sacrifices to the K'iche' Maya patron deity Tohil had their severed heads placed on a rack in front of the temple?