Some believe that reputedly "haunted" places are simply sites with strong electromagnetic activity. So, in 2006, scientists attempted to manufacture a haunted room in London. They rigged the room to release electromagnetic pulses and infrasound waves, which are often credited with generating creepy vibes. However, the haunted room experiment didn't prove the electromagnetic-haunted connection outright: volunteers who went into the room were more likely to report strange reactions if they already believed in the paranormal. Learn more about ghosts and haunted houses in the videos below.