Examining one of the most enduring myths, the mystery of Big Foot, who eyewitnesses claim is up to 10 feet tall and covered in foul-smelling, brown fur.
Looks at why there have been so many unexplained air crashes in the Sierra Nevada.
Historical sightings of the Loch Ness Monster are reviewed; a variety of theories and explanations are considered; the available photos and footage are examined using modern technology.
Seeks to uncover the truth about one of history's most notorious serial killers, Jack the Ripper.
Exploring some of the questions raised to dispute the official findings into the events of 9/11.
Though she officially committed suicide, some people have long claimed that the FBI, the Mafia and even the Kennedy family may have been involved in Marilyn Monroe's death.