Museums display the wondrous treasures of the past, and behind each artefact is a story to be told and secrets to be revealed - tales brimming with scandal and mystery, murder and intrigue.

Hidden inside the world's castles and mansions are secrets waiting to be revealed. What remarkable tales of mystery and adventure transpired within their walls?

Hidden inside the world's castles and mansions are secrets waiting to be revealed. What remarkable tales of mystery and adventure transpired within their walls?

Former Colorado law enforcement officer Chuck Zukowski and his son Daniel investigate UFO-related cases that the authorities usually ignore. They search for definitive proof of UFOs along America’s infamous Alien Highway.

Former Colorado law enforcement officer Chuck Zukowski and his son Daniel investigate UFO-related cases that the authorities usually ignore. They search for definitive proof of UFOs along America’s infamous Alien Highway.

Experts and eyewitnesses try to unlock the mystery of the Alaska Triangle, a remote area infamous for alien abductions, Bigfoot sightings and paranormal phenomena.

One of the most passionate paranormal teams in America, the Tennessee Wraith Chasers, are in Missouri to investigate a haunted and abandoned asylum.

Paranormal investigators Jack Osbourne and Katrina Weidman travel the world to explore the sinister locations associated with being gateways to the underworld.

Three best friends investigate Americas's most haunted locations.