Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.

Follow brothers Marty and Rick Lagina through their effort to find the speculated - and as of yet undiscovered - buried treasure believed to have been concealed through extraordinary means on Oak Island.

From the planets to the stars and out to the edge of the unknown, history and science collide in a wondrous yet deadly adventure through space and time.

Competitors re-create weapons from historical periods ranging from Japanese katanas to medieval broadswords to ancient throwing blades. Each entry is judged on its artistry as well as its functionality and accuracy.

Take a trip to Yellowknife, Canada to experience one of the most dangerous careers around. In unfathomably cold conditions, truck drivers haul equipment and supplies to miners in the Canadian tundra in the dead of winter on a 350-mile highway of ice.

The investigation of the world’s most mysterious hot spot for UFO and “High Strangeness” phenomena with astrophysicist Dr. Travis Taylor who joins real estate tycoon Brandon Fugal, along with his team of scientists and researchers on Utah’s notorious Skinwalker Ranch. The team utilizes cutting edge technology to investigate the 512-acre property to uncover the possibly “otherworldly” perpetrators behind it all. With everything from mysterious animal deaths to hidden underground workings and possible gateways that open to other dimensions, witness the close encounters that go beyond conventional explanation, as the team risks everything to finally reveal the ultimate secret of Skinwalker Ranch.

Go inside the colorful world of the pawn business. At the Gold & Silver Pawn Shop on the outskirts of Las Vegas, generations of the Harrison family run the family business, and there’s clashing and camaraderie every step of the way.

History's Mysteries was an American documentary television series on the History Channel.

In honor of the sci-fi franchise’s 55th anniversary this year and produced by The Nacelle Company, the project will feature interviews with cast, crew and experts as it explores pivotal moments in the franchise’s history, from its inception at Lucille Ball’s production company Desilu to recent film and television adaptations.

HISTORY’s longest-running series moves to H2. Modern Marvels celebrates the ingenuity, invention and imagination found in the world around us. From commonplace items like ink and coffee to architectural masterpieces and engineering disasters, the hit series goes beyond the basics to provide insight and history into things we wonder about and that impact our lives. This series tells fascinating stories of the doers, the dreamers and sometime-schemers that create everyday items, technological breakthroughs and manmade wonders. The hit series goes deep to explore the leading edge of human inspiration and ambition.

Combines four to five segments of dramatic re-enactments, interviews and updates of real human and paranormal mysteries. An audience interactive call-to-action request allowed viewers to call in with tips to help solve the cases.

Pickers like Mike Wolfe and Frank Fritz are on a mission to recycle America, even if it means diving into countless piles of grimy junk or getting chased off a gun-wielding homeowner’s land. Hitting back roads from coast to coast, the two men earn a living by restoring forgotten relics to their former glory, transforming one person’s trash into another’s treasure.

America: The Story of Us is a six-part, 12-hour documentary-drama television miniseries that premiered on April 25, 2010, on History channel. Produced by Nutopia, the program portrays more than 400 years of American history. It spans time from the successful English settlement of Jamestown beginning in 1607, through to the present day. Narrated by Liev Schreiber, the series recreates many historical events by using actors dressed in the style of the period and computer-generated special effects. The miniseries received mixed reviews by critics; but it attracted the largest audiences of any special aired by the channel to date.

Have you ever wondered what goes on behind the scenes of the most legendary monuments and powerful organizations in the United States? America’s Book of Secrets lifts the veil of mystery, giving you unparalleled access to historical narratives and insider information previously hidden from the public. Through in-depth research and exclusive channels, this series delves into a variety of familiar but enigmatic American institutions, from the FBI and the Pentagon to Fort Knox and Area 51. Go beyond the locked doors and security checkpoints of government agencies, famous landmarks and stealthy societies to glimpse the hidden worlds you were never intended to see.

The fascinating stories of the families behind the food that built America, those who used brains, muscle, blood, sweat and tears to get to America's heart through its stomach, those who invented new technologies and helped win wars.

The Hells Angels are the single most notorious motorcycle club in history. They’re also one of the most secretive organizations on the planet. Members are known to take revenge on each other for talking. Now, for the first time ever, a Hells Angels member will bare all the club’s secrets. A former angel will come clean. He’ll tell the world about everything from initiation rites to murder for hire.

Investigates a wide range of historically compelling topics and the mysteries surrounding each including the Titanic, D.B. Cooper, Roswell, John Wilkes Booth, and more. Fresh, new evidence and perspectives will be showcased, such as never-before-released documents, personal diaries and DNA evidence.

Delve deep into a vast archive of over 70,000 UFO files gathered over nearly half a century in Hangar 1. MUFON, an independent organization dedicated to investigating UFOs, has compiled these archives looking for connections, clues, and evidence to find the truth about UFOs.

Each episode analyzes and passes verdicts on several seemingly impossible things “caught on film,” including giant beasts, UFOS, apocalyptic sounds, hairy humans, alleged mutants from the deep, conspiracies, and many other cases. Host and veteran journalist Tony Harris takes nothing for granted in a quest for answers, tracking down eyewitnesses, putting each photo or film through a battery of tests, calling out the hoaxes, and highlighting the most credible evidence in an attempt to better understand our world.

Clash of the Gods is a one-hour weekly mythology television series that premiered on August 3, 2009 on the History channel. The program covers many of the ancient Greek and Norse Gods, monsters and heroes including Hades, Hercules, Medusa, Minotaur, Odysseus and Zeus.