The famous Roswell UFO crash was just one in a long history of allegations involving alien phenomena. This special explores some lesser-known UFO reports.

Roswell: The First Witness series follows the grandchildren of Major Jesse A Marcel, the first person on the scene of the Roswell crash in July 1947. His family believe Major Marcel was pressured by the US government to retract his original statement of what he discovered at the crash site and deny he ever saw evidence of a UFO.

Hosted by real-life treasure hunters, Rick and Marty Lagina, this show chronicles the greatest treasure hunts of the past, present and (perhaps) future, from outlaws such as Captain Kidd and Jesse James to Aztec gold.

Jesse Woodson James, America's most notorious outlaw, robbed his way to over half-a-billion dollars. Officially, he died in 1882, but is there more to the story than it seems?

Actor and science fiction icon William Shatner shines a light on mysterious subjects, events and phenomena around the world that have gone unexplained for years.

Host Tony Harris investigates alleged videos, photos and audio recordings of giant beasts, UFOs, alleged mutants from the deep, and other mysterious phenomenon.

At Gallery 63, an auction house in Sandy Springs, experts appraise the gallery items and provide its historical background to the employees at the auction house.

Bigfoot, Loch Ness Monster, killer beasts on land and sea – are these myths, legends, folklore or real monsters lurking in the world around us?

Kings of Pain follows wildlife biologist Adam Thorn and professional animal handler Rob 'Caveman' Alleva as they get bitten and stung by some of the most dangerous animals and vicious stinging insects in the world.