In Russia, 34,000-year-old graves are discovered. A team attempts to locate a World War II British plane that went missing in Iceland. Fossils are found in an Alaskan riverbank. In Antarctica an undiscovered depression in the ice is investigated.
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A strange series of events in Grand Canyon National Park leads researchers to speculate whether its power comes from forces that cannot be explained.
A trip through the ginormous forest in Arizona. Strange encounters rumoured to have happened there include an alien abduction.
Explore Cleveland National Forest, where reports of gun-wielding ghosts, savage creatures and otherworldly portals are rife.
Discover the forces living in the secret underworld of Death Valley National Park, where a series of deaths and disappearances have taken place.
A series of incidents in Big Bend National Park leave experts convinced of secret alien activities taking place there.
A volcanic island off the coast of Antarctica with a mysterious past is explored. In the Peruvian Andes, the mummified remains of a teenage girl are discovered. A shipwreck is found near Russia's Franz Josef Archipelago.
In Russia, 34,000-year-old graves are discovered. A team attempts to locate a World War II British plane that went missing in Iceland. Fossils are found in an Alaskan riverbank. In Antarctica an undiscovered depression in the ice is investigated.
The infamous Yosemite National Park has a darker side that includes mysterious sightings, disappearances and even a prehistoric pterodactyl.
Built by the ancient Anasazi, spooky sightings in this national park include shape-shifting creatures and time-traveling Wingmakers.
Some claim that the dark, mysterious energies that surround this national park point to treasures from a lost civilisation that are hidden there.
A stroll through a national park that is the alleged underground base for a powerful secret society.
In October 2017, astronomers at the Pan-STARRS observatory saw something strange in our solar system: an object they named ‘Oumuamua', the very first observed visitor from interstellar space. This programme contains some flashing images.
Discover the desert ghost town of untold riches and unspeakable horrors, the lost empire of South America and hear mystery noises that haunt a city
Merging advanced scanning technology and scientific research, this series investigates curiosities that have been lost for millennia, or never seen before, exploring how and why they ended up in the most desolate and distant corners of the planet.
An abandoned military radar station in the Arctic looks like an apocalyptic nightmare. Full beer bottles line the bar, eggs in the refrigerator, magazines open on tables. What happened to the officers?
There are those who wish to control what others think, how they act and what they believe. Discover the new practices in mind-control.
There have been doomsday signs and prophecies for centuries, and humans' time on this planet may be nearly over.
It's early evening in rural Pennsylvania when several dozen witnesses report seeing a fiery object falling through the sky and landing in the nearby woods.
Two cousins, Billy and John Smith, are driving in separate cars when they encounter a massive 'mothership' three times the size of a football stadium.
In this gripping episode, Craig and Sarah take on the Stephenville UFO case. They scrutinise all available evidence, talk to key eyewitnesses and grill experts before arriving at a final verdict. This programme contains some flashing images.
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