Halloween Real Estate: Real Haunted Houses

Visiting haunted houses is a Halloween staple. People pay to walk through buildings to experience spookily costumed characters, eerie sounds and ghostly apparitions. Most of these haunted houses are just dressed up for the occasion, but there are some homes in the U.S. that visitors say are haunted year-round, by the sound of baby cries or the specters of deceased residents who just don't want to leave. (Also see: "Is Listed Home a Crime Scene? How to Know Before You Buy.")

Here's a look at some of the real haunted houses -- that is, if you're a believer. Some of them are even currently for sale: