The History Channel

The Abominable Snowman is among the most frightening and notorious monsters in history. This ferocious nocturnal creature is said to attack people and slaughter their animals. Witnesses report sightings of a strange, hair-covered beast and claim to have heard blood-curdling screams. Evidence amassed over the last century may point to a startling conclusion: that something real and unknown stalks the desolate mountains of the Far East. Scientists and experts will examine the clues while the MonsterQuest team will undertake their most dangerous expedition to date with an epic ascent onto the snowy peaks where recent evidence of the beast was found.

Newly declassified documents are providing the opportunity for a deeper investigation into whether governments around the world are engaged in a cover-up of UFO research. MysteryQuest's expedition and science teams travel to locations in the Nevada desert and in Utah to investigate. Using state of the art technology they investigate these covert US government sites looking for clues about what the government may know. And they experience just how much the government wants to keep its secrets when military helicopters and a fighter jet shadow the team on their trek near the base.

For years, people have claimed to have had direct, personal contact with an alien. In this episode of our series, the team tracks down several people who claim to have had such contact. They'll also work along side medical and scientific professionals to try and discover what, if anything, really happed to these people.

For thousands of years London has been among the most powerful cities in the world. However, below the busy streets and marketplaces another city hides--a city of Roman baths, secret crypts, lost rivers and indestructible bunkers that could hold up to 8,000 people. Join host Eric Geller as he reveals the subterranean secrets found below London's most famous landmarks and even finds Winston Churchill's hidden war rooms.

When millions of people all over the world vanish, a biblical prophecy that has come to be known as the Rapture will be fulfilled, and a floodgate of horrors will be opened on those who are left behind. The Apostle Paul foresaw a moment when all Christians would suddenly be caught up into the air with their Messiah. This would occur prior to the final outpouring of God's wrath upon the wicked. Even Native America Hopi predicted the faithful would be taken off the Earth in advance of a final war between good and evil. Many claim that all of the events that presage the Rapture have already happened. Does this mean that the Rapture is almost upon us? If so, we are now on the threshold of an Apocalypse.

September 17, 1944: An Allied plan to drive deep behind enemy lines into German-held Holland begins. In history's largest airborne operation, more than 30,000 US, British, and Polish troops are dropped behind enemy lines to try to end WWII by Christmas. Devised by British Field Marshal Bernard Montgomery, Operation Market Garden was far from a decisive masterstroke--it was one of the worst Allied defeats of the war. The question is, why? Using innovative research on the ground over which the campaign was waged, we uncover new insights in the fields of intelligence, communications, weaponry, and terrain. Was it a daring plan that almost succeeded, or fatally flawed before it began?

Reveals for the first time the cockpit and control tower audio recordings of pilot and astronaut confrontations and sightings of unidentified flying objects high in our skies. From a detailed account of one of the very the first reported pilot case, the Arnold case in 1947, to recent recordings over New England and Texas, to NASA recordings and video from 2005, this special features interviews with pilots, witness and experts, including UCLA's Joseph Nagy, actor Ed Asner, and pilot/UFO researcher Don Berliner.

An exploration of the Giganto (King Kong) legend using modern science, technology, and historic eyewitness accounts. Gigantopithecus (the Latin term for "Giant Ape") is believed to have existed 9 to 5-million years ago and supposedly was around 10-feet tall. Some fossil evidence shows that it may have lived in China or India. Scientists of varying fields will attempt to genetically connect Giganto to modern-day creatures from around the world. Could Bigfoot be a relative? Forensic testing, extensive scientific research, 3-D animation, and body reconstruction will help determine the true mystery behind this prehistoric ape.

Newly declassified documents are providing the opportunity for a deeper investigation into whether governments around the world are engaged in a cover-up of UFO research. MysteryQuest's expedition and science teams travel to locations in the Nevada desert and in Utah to investigate. Using state of the art technology they investigate these covert US government sites looking for clues about what the government may know. And they experience just how much the government wants to keep its secrets when military helicopters and a fighter jet shadow the team on their trek near the base.

UFOs are the biggest mystery of our time and somebody--or something--seems determined to keep it that way. Hundreds of UFO researchers and witnesses have told of terrifying encounters with mysterious men, usually dressed completely in black, who threaten terrible consequences if they don't keep silent. The Men in Black seem to appear out of nowhere, know facts the witnesses haven't divulged to anybody, and frequently display bizarre behavior, leading some to question whether they are in fact, human. The team interviews men who are only now willing to come forward to tell their stories. A sketch artist will create portraits of the MIB to see if the sightings match. The team will also analyze the only known photograph of a MIB and talk to the photographer. Finally, the team travels to "the new Area 51" in the Utah desert, to a site rumored to be the place where the MIB originate.

In 1943, a warship was rendered invisible in the Philadelphia Naval Yard, then teleported instantly to Norfolk, Virginia and back. But this technological breakthrough was achieved at such horrific human cost--crewmen missing or gone insane, dead sailors fused into bulkheads--that authorities deep-sixed the experiment. Or so goes the legend that still flourishes. We examine this tallest of seaman's tales and learn how real anti-submarine technology led to talk of disappearing ships.

Informational programming.

Informational programming.

Informational programming.

Informational programming.

A look at the Colosseum, Pantheon, Forum, and other ancient monuments that were often places of ritualistic human sacrifices and torture.

19th-century explorers in the American southwest encountered the ruins of a vanished civilization that spread across Colorado, Utah, New Mexico, and Arizona. Why were these spectacular cities abandoned? Where had the inhabitants gone? Modern anthropologists hint at a disturbing past in contrast with earlier peaceful perceptions.

For thousands of years London has been among the most powerful cities in the world. However, below the busy streets and marketplaces another city hides--a city of Roman baths, secret crypts, lost rivers and indestructible bunkers that could hold up to 8,000 people. Join host Eric Geller as he reveals the subterranean secrets found below London's most famous landmarks and even finds Winston Churchill's hidden war rooms.

When millions of people all over the world vanish, a biblical prophecy that has come to be known as the Rapture will be fulfilled, and a floodgate of horrors will be opened on those who are left behind. The Apostle Paul foresaw a moment when all Christians would suddenly be caught up into the air with their Messiah. This would occur prior to the final outpouring of God's wrath upon the wicked. Even Native America Hopi predicted the faithful would be taken off the Earth in advance of a final war between good and evil. Many claim that all of the events that presage the Rapture have already happened. Does this mean that the Rapture is almost upon us? If so, we are now on the threshold of an Apocalypse.

September 17, 1944: An Allied plan to drive deep behind enemy lines into German-held Holland begins. In history's largest airborne operation, more than 30,000 US, British, and Polish troops are dropped behind enemy lines to try to end WWII by Christmas. Devised by British Field Marshal Bernard Montgomery, Operation Market Garden was far from a decisive masterstroke--it was one of the worst Allied defeats of the war. The question is, why? Using innovative research on the ground over which the campaign was waged, we uncover new insights in the fields of intelligence, communications, weaponry, and terrain. Was it a daring plan that almost succeeded, or fatally flawed before it began?

Reveals for the first time the cockpit and control tower audio recordings of pilot and astronaut confrontations and sightings of unidentified flying objects high in our skies. From a detailed account of one of the very the first reported pilot case, the Arnold case in 1947, to recent recordings over New England and Texas, to NASA recordings and video from 2005, this special features interviews with pilots, witness and experts, including UCLA's Joseph Nagy, actor Ed Asner, and pilot/UFO researcher Don Berliner.

An exploration of the Giganto (King Kong) legend using modern science, technology, and historic eyewitness accounts. Gigantopithecus (the Latin term for "Giant Ape") is believed to have existed 9 to 5-million years ago and supposedly was around 10-feet tall. Some fossil evidence shows that it may have lived in China or India. Scientists of varying fields will attempt to genetically connect Giganto to modern-day creatures from around the world. Could Bigfoot be a relative? Forensic testing, extensive scientific research, 3-D animation, and body reconstruction will help determine the true mystery behind this prehistoric ape.