Participants are forced to use their wits when left in the wilderness with nothing but a backpack; struggling with harsh weather, hostile locations and aggressive wildlife.

Alone

A team of scientists and experts conducts a thorough and daring search of the infamous 512-acre property in an attempt to find the answers behind more than 200 years of UFO sightings, strange animal mutations, and paranormal related mysteries.

The Secret of Skinwalker Ranch

Childhood friends and antiques collectors, Mike Wolfe and Frank Fritz, travel the United States looking for rare artifacts and national treasures.

American Pickers

Texts, archaeology and legend contain evidence of past human-extraterrestrial contact.

Ancient Aliens

The Harrisons run the only family-owned pawnshop in Las Vegas, using their skills and network of experts to assess the value of customers' items and make deals.

Pawn Stars

An exploration of strange and inexplicable mysteries; contributions from scientists, historians and witnesses as they seek to shed light on how the impossible can happen.

The UnXplained

From perilous playgrounds to precarious products, Henry Winkler hosts a running cavalcade of the most exciting, reckless, unsupervised tales of Americana in our history.

Hazardous History With Henry Winkler

Explore the 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.

The Food That Built America

Master bladesmiths are challenged to re-create some of history's most iconic edged weapons, then a panel of judges tests the weaponry and decides who is the "Forged in Fire" champion.

Forged in Fire

David Duchovny investigates some of the most secretive, disturbing or strangest government activities that have been declassified through history.

Secrets Declassified With David Duchovny

Cameras capture the action in the Atchafalaya Basin during alligator-hunting season.

Swamp People

Eustace Conway and others try to obtain the food and supplies to make it through winter.

Mountain Men

Rick and Marty Lagina, two brothers from Michigan, attempt to solve the mystery of Oak Island, a tree-covered island on the south shore of Nova Scotia.

The Curse of Oak Island

Investigating significant historic and contemporary sites from the revealing vantage points of drone, satellite and aerial photography.

Mysteries From Above

Using new evidence to look at some of the most historically important mysteries of recent times.

History's Greatest Mysteries

Stories of those who believed in dreams and defied the commonplace with their extraordinary creations; covering some of the world's architectural and engineering structures, scientific inventions, and social wonders.

Modern Marvels

Host Dan Aykroyd uncovers some of the most mysterious and bizarre inventions, creatures, people and things throughout history, by using dynamic visuals, archival images, and expert interviews.

The UnBelievable With Dan Aykroyd

Long-haul truckers risk their lives to bring supplies to remote locations.

Ice Road Truckers

Illuminates the shadowy liaison between U.S. Naval Intelligence, the Office of Strategic Services, and Army, and the New York and Sicilian Mafia during WWII.

Project Underworld: The Military and the Mafia

President George W. Bush, Vice President Dick Cheney, Mayor Rudolph Giuliani, and others provide a new perspective on the 9/11 terrorist attacks; the day's events are seen anew through the lens of declassified documents, photographs and information.

15 Septembers Later

An entertaining conversation expresses perks and perils of being the most-powerful man in the world.

It's Good to Be President

Researchers suggest the possibility of a fatal flaw in the construction design of the ocean liner.

Titanic's Achilles Heel

For more than two centuries, searchers have been building a mosaic of valuable clues; now, it's time to count down their most meaningful discoveries.

The Curse of Oak Island: The Top Ten Signs of Buried Treasure

A recount of espionage exploits as relatives of fallen heroes and CIA agents examine CIA files.

Top Secret Missions of the CIA

It is sometimes necessary to create large "super structures" to overcome nearly-impossible challenges. This series showcases the construction of some of these larger-than-life structures. Some of the buildings are constructed to be able to survive natural disasters, while the purpose of others is mainly to highlight what engineers are capable of creating. Among the structures featured on "Project Impossible" are the largest movable building in history and a skyscraper built to withstand major earthquakes.

Project Impossible

One of the most popular theories about the Oak Island treasure involves a connection to the Templar; counting down the top 10 Templar ties.

The Curse of Oak Island: The Top Ten Templar Ties

How sex has impacted the way people govern, learn and do just about everything.

How Sex Changed the World

Rome: Rise and Fall of an Empire

Uncover the world's most mysterious monster myths in "MonsterQuest," trekking around the globe in search of the true, scientific realities behind Bigfoot, man-eating catfish, aquatic dinosaurs and more.

MonsterQuest

Exploring historical blunders, engineering disasters and deadly tragedies.

History's Greatest Blunders

Brian Unger explores how America's States got their borders and how they continue to change today.

How the States Got Their Shapes

Exploring the key battles in the civil rights movement that transformed American society, including the Montgomery bus boycott of 1955 and the Chicago freedom movement, and uncovering what it took to translate protest into real legislative change.

Rise Up: The Movement That Changed America

The history of the area in New York known as the Five Points, breeding ground for such criminals as Al Capone and Lucky Luciano.

Five Points Gangs

Top investigators and code-breakers strive to crack the code of the Zodiac Killer, whose identity remains unknown.

The Hunt for the Zodiac Killer

A commemoration of the Japanese attack on Pearl Harbor explores both well-known and lesser-known stories from a day that will forever live in infamy; experts, eyewitnesses and military minds show how this tragedy continues to shape the United States.

Pearl Harbor: 75 Years Later

The stories behind the world's most original people, including exclusive access and fresh perspectives.

Biography International

The 2,500 miles of road stretches from Boston to Miami.

Atlantic Intracoastal Waterway

Alien-life theorist Giorgio Tsoukalos explores some of the world's famous mysteries.

In Search of Aliens

Christmas Through the Decades

American civilians make a daring escape from the Philippines when the nation is overrun by Japanese troops.

WWII Sub Rescue

Exploring phenomena captured on camera; investigating UFOs, cryptids, strange encounters and unexplained forces; Tony and a team of experts analyze the evidence and deliver their verdict.

The Proof Is Out There: Unexplained Edition

Historic events that forever transformed the United States.

Days That Shaped America

The escape from Alcatraz in 1962 forces the government into a merciless manhunt, but the three inmates are never found; the family of the escaped Anglin brothers searches for answers to its very public mystery.

Alcatraz Escape: The Lost Evidence

An in-depth look at significant moments in world history.

In Search of History

Mob legends, their violent lives, struggles to grab power, wealth and prestige.

Mobsters

Intimate Portrait

Some cults are determined to destroy society as it is today.

Cults: Dangerous Devotion

Commentary from art historians, friends and the artist himself provide insight about this American legend.

Norman Rockwell: An American Portrait

As American settlers relentlessly move west during the mid 19th century, they increasingly encroach on Native American lands, until a legendary Lakota leader emerges, one determined to fight back.

Sitting Bull

In 1347, the worst biological disaster in the history of mankind swept through Europe, wiping out almost half of the population in three years.

The Plague

Nostradamus may have predicted the outcome of the 2016 U.S. presidential election; the seer refers to an epic battle between a "Masculine Woman" and an "Audacious Bawler," while foretelling a time of great trouble in the wake of the election.

Nostradamus: Election 2016

New information details how a nation ranked 19th in the world's militaries in 1939 emerged six years later as the planet's only atomic superpower.

WW2 From Space

Jeff Mudgett tries to prove a controversial theory that his great-great-grandfather, serial killer H.H. Holmes, and Jack the Ripper were the same person.

American Ripper

Told entirely from the first-person perspective of leaders, physicists, soldiers and survivors, this presents the moral, scientific and military conundrums of the atomic bomb as felt by those closest to it.

Hiroshima: 75 Years Later

Four-part documentary about the history of Mexico, describing a major period in Mexico's history and including a segment on social history and culture, especially those customs that have become woven into American culture.

Mexico

Revisiting the most compelling mysteries explored over the past 15 years of "Ancient Aliens"; experts engage in thought-provoking conversations on topics central to the Ancient Astronaut Theory.

Ancient Aliens: Origins

How the Earth Was Made

An ancient scroll, created around 1800 B.C., makes history with its rediscovery and theft in 1887 and is translated in modern times.

The Egyptian Book of the Dead

Roman funeral practices; secret societies; palaces of Nero and Tiberius.

Roman Vice

Healing women; sorceresses; European persecution of witches; Salem witch trials.

Witchcraft

Hitting the road to visit America's exciting places in search of historical finds and impressive collectible objects while connecting with fans in eight different cities.

Pawn Stars Do America

An enhanced version of the series "Ancient Aliens."

Ancient Aliens: Declassified

Unlocking the secrets and addressing the critics of the popular book.

Behind The Da Vinci Code

Expeditions lead to the recovery of two large, intact sections of the ship's hull and allow for further analysis of the disaster.

Titanic's Final Moments: Missing Pieces

An interview with actor Richard Gere helps profile Tenzin Gyatso, the 14th Dalai Lama and spiritual leader of Tibet.

Dalai Lama: The Soul of Tibet

An in-depth look into unexplained phenomena from all over the world.

In Search Of

The African American contribution to the Normandy invasion.

A Distant Shore: African Americans of D-Day

Civil War Gen. William Tecumseh Sherman stands as a hero in the North and as a villain in the South.

Sherman's March

Acclaimed storyteller and local historian Bil Lepp travels off the beaten path across the country to discover the truth behind mysteries and legends of American history.

Man vs. History

The story behind the Watergate scandal, including Vietnam, the unrest of the 1960s, a near World War, the opening of China, and the moment when some unlikely heroes from both political parties band together and bring down the White House.

Watergate

Accounts from survivors of the attack spotlight the locations where soldiers, sailors and marines fought and died on Oahu.

Unsung Heroes of Pearl Harbor

Profile of the first lady who disliked politics but supported her husband, Richard, through the many crises of his turbulent career; here is the real Pat Nixon, the perfect political wife who smiled in public and said nothing controversial.

Pat Nixon: Behind the Smile

Steven Rinella dives into some of history's greatest and most perplexing wilderness mysteries, examining how people's interactions with their environment may rewrite the narrative of legends.

Hunting History With Steven Rinella

German military aircraft designs surpass those of their Allied counterparts.

Secret Luftwaffe Aircraft of WWII

A look at treasure quests across the globe, revealing new details and clues from past searches.

Beyond Oak Island

Troy Landry teams with local experts in a wild chase to help save America from hostile, menacing and often mysterious creatures.

Swamp Mysteries

The historical events that spawned the self-proclaimed Islamic State (ISIS), one of the world's most feared terrorist organizations; interviews with U.S. policymakers, generals and intelligence officers as well as an interview with an ISIS recruit.

ISIS: Rise of Terror

Revisiting a series of critical historical events, disasters, triumphs and true stories to learn unexpected facts in an engaging, fast-moving, and often unpredictable way.

I Was There

Goes behind the scenes of some of the most legendary monuments and organizations.

America's Book of Secrets

Find out what happens to massive machines and equipment when they outlive their usefulness.

Boneyard

Engaging and in-depth profiles of the people who have captured the world's imagination.

Perspectives

The origins of hot dogs; America's beef industry memorial; longhorn beef in Texas; Lafayette's annual black pot cook-off.

Meat America

Putting a price tag on everything the planet Earth has to offer to evaluate how much people have used throughout history and how much is left to reveal the absolute value of the Earth.

What's the Earth Worth?

Exploring the biblical world from a military perspective.

Bible Battles

Putting viewers in the position of decision makers at historic events.

Command Decisions

Colombian serial killer Pedro Lopez is suspected of murdering more than 300 South American girls.

The Monster of the Andes: Pedro Lopez

Since mankind's beginnings, and in all civilizations, humans have found ways to alter everyday consciousness in search of a greater reality; to this end, we have indulged in many frightening and often toxic substances in many different rituals.

Ancient Drugs

Exploring the history of the American presidency with a comprehensive look at a wide variety of presidential action that moved our country forward.

The American Presidency With Bill Clinton

In 1590, the governor of Roanoke returned from England to find all 117 settlers missing; the only clues: five chests of books and papers buried in the sand, and the word "Croatoan", a Native-American village to the south, carved on a post.

Lost Colony of Roanoke

Personal profiles of two iconic leaders of the Civil War indicate how these men changed the course of American history.

Lee & Grant

Allied armies struggle to break free of the beaches.

D-Day: The Total Story: Breakout

Stories behind the big clashes in WWE history.

WWE Rivals

Japanese Emperor Hirohito is both worshiped and reviled.

Hirohito

This one-hour special digs deep into the core of The Rock, depicting its imprint on our national psyche with new and revealing interviews from those who know the true story of Alcatraz.

Inside Alcatraz: Legends of the Rock

From the mid-1600s to the turn of the 20th century, more than 5 million emigrate from Ireland; Aidan Quinn narrates.

The Irish in America

Beginning with the 1993 World Trade Center bombing, journalist Steve Coll chronicles the events that took place in the lead-up to the terrorist attacks on Sept. 11, 2001, including missed signals, failed operations and political turf wars.

Road to 9/11

Musician Ozzy Osbourne and his son, Jack, hit the road to see historically significant spots.

Ozzy and Jack's World Detour

Documentary series that investigates the history of the seven deadly sins.

Seven Deadly Sins

Veterans who survived nuclear-weapons accidents tell their stories.

America's Lost Bombs: The True Story of Broken Arrows

Zach Selwyn hits the streets and tells us the meaning and etymology of common words and phrases.

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