Glenn Kirschbaum Dinosaur Secrets Revealed Secrets of the Unknown: Tornadoes & UFOs Secrets of the Unknown: Poltergeists Secrets of the Unknown: Nostradamus Secrets of the Unknown: Nostradamus Secrets of the Unknown: Hollywood Hauntings Secrets of the Unknown: Hollywood Hauntings Secrets of the Unknown: Curses Secrets of the Unknown: Amelia Earhart Secrets of the Unknown: Amelia Earhart Secrets of the Unknown: Witches Secrets of the Unknown: Witches Secrets of the Unknown: Life After Death Secrets of the Unknown: Dreams and Nightmares Secrets of the Unknown: Tornadoes Secrets of the Unknown: Tornadoes Secrets of the Unknown: Dreams and Nightmares Secrets of the Unknown: Lake Monsters Remembering Gene Wilder Secrets of the Unknown: Bigfoot & Witches