The practice of preserving dead bodies occurred all over the ancient world. Egypt is perhaps best known for its mummies, but the Inca of Peru also perfected a preservation process. Preserved bodies have also been found in such diverse places as peat bogs in Denmark, the Canary Islands, and the Aleutian Islands in Alaska. Modern mummies have taken center stage in a number of movies as evildoers. For instance, in the 1999 film The Mummy , archeologists stumble into an ancient Egyptian tomb, causing an angry and lovesick mummy to wake up.
Poltergeists move furniture, bang on walls and doors, and break things to make their presence known.
In some cases poltergeists can be quite aggressive, hurling objects through the air and striking people.