History's Greatest Mysteries
Using new evidence to look at some of the most historically important mysteries of recent times.
Roswell
S6 E1
A 200-yard swath of debris landed near Roswell, New Mexico; some believe it was an alien craft, others that it was a secret government experiment.
The Franklin Expedition
S6 E2
The search for the illusive Northwest Passage leads to a historic expedition that sets sail into a labyrinth of ice and is never heard from again.
What is the Yeti?
S6 E4
Sightings of the Yeti, a creature of myth and legend, has been recorded for thousands of years throughout the Himalayas and surrounding regions; a seven-foot-tall creature, covered in shaggy gray hair is hiding in plain sight.
The Final Flight of Amelia Earhart
S6 E5
Amelia Earhart, the world's most famous female pilot, takes off on the final leg of a record-breaking flight; but Earhart never arrives at her next stop: an island in the Pacific Ocean; the search for this flier has revealed conflicting stories.
The Death and Fortune of Pablo Escobar
S6 E6
Pablo Escobar, the narco-trafficker who single-handedly supplied most of America's cocaine in the 1980s, had billions of dollars in cash; by the time he was gunned down in 1993, it's believed he was worth over $50 billion in today's money.
The Lost Loot of Jesse James
S6 E7
Cash, jewels, and two million dollars in gold bars; Jesse James and his gang robbed trains, stagecoaches and banks, and buried the spoils; but only a fraction of the millions has actually been found.
The Rendlesham Forest Incident
S6 E8
An event outside a U.S. Air Force base near the Rendlesham Forest in England becomes an international legend, and one of history's strangest unidentified encounters; for more than 40 years, the question has endured.
The Death of Dillinger
S6 E11
Using new evidence to look at some of the most historically important mysteries of recent times.
The Missing Riches of Genghis Khan
S6 E12
The ancient ruler who amassed a fortune estimated to be worth 120 trillion in today's dollars; Genghis Khan hide his riches so well that to this day no one has unearthed them; 800 years later the fate of his treasure remains a mystery.
The Missing Tesla Papers
S6 E13
Nicola Tesla had revolutionary ideas, but in the hands of the wrong people, those ideas could be used for evil purposes; when Tesla died, he allegedly had 80 trunks of papers full of ideas, but only 60 have been seen again.
Montezuma's Lost Treasure
S5 E1
An Aztec king's glittering treasure vanishes into thin air, inspiring a 500-year search that spans continents; one of the greatest warriors of all-time amassed a vast horde believed to be worth more than $3 billion today.
The Garden of Eden
S5 E2
Most people know it as the biblical birthplace of man -- the Garden of Eden; investigating if the Garden of Eden was just a story to explain human creation or if it was a real place.
The Lost Fortune of the Knights Templar
S5 E3
A look at what happened to the secret hoard of the Knights Templar, a treasure of gold, silver, gems and religious relics protected by a medieval religious order.
The Shroud of Turin
S5 E4
The haunting image of the Shroud of Turin has captivated millions around the world; scientists and theologians are trying to figure out if the Shroud of Turin truly is an image of Jesus or something very different.
Captain Kidd's Treasure
S5 E5
In 1698, Capt. William Kidd raids a ship on the high seas and seizes its vast treasure, but Kidd is hanged before revealing where he stashed the loot; a look at what happened to the lost booty and where it is now.
Escape from Alcatraz
S5 E6
A perfectly masterminded plot leads to one of the most brazen prison breaks in American history; with only a handful of clues left behind, the search for the infamous Alcatraz escapees continues to this day.
The Battle of Los Angeles
S5 E7
On February 24, 1942, less than three months after the Japanese bombed Pearl Harbor, military radar picks up what appears to be enemy aircraft over Los Angeles.
The Mystery of Machu Picchu
S5 E8
With 500-year-old secrets hidden in skeletons and stone, Machu Picchu remains one of the most puzzling archaeological sites on earth; it ranks among the ancient world's most enduring riddles, pertaining to its creators and reason for its creation.
Who Killed King Tut?
S5 E9
The death of one of history's most enigmatic rulers, Egypt's King Tutankhamun remains shrouded in mystery 3300 years later. Scientific advancements may be getting us closer to the identity of King Tut's killer.
The Hindenburg Disaster
S5 E10
For decades experts believe they know what caused the Hindenburg disaster: that leaking hydrogen--causing the airship to burst into flames; but there may be more to this story.
The Search for Alexander the Great
S5 E11
The story of the most celebrated warrior king in history still stirs fascination more than 2000 years after his death.
The Legend of the Lost Dutchman's Mine
S5 E13
The search for the most famous gold mine in the Old West has led many to perish in the pursuit of its elusive riches.
The Assassination of RFK
S5 E14
Five years after John F. Kennedy is killed by gunshot, his brother Robert meets the same fate; an assassin's bullet again changes the course of history, and the latest clues in the case are riddled with inconsistencies.
Salem Witch Trials
S5 E15
A notorious tragedy leads to one of the darkest chapters in early American history; in 1692, fear rips through the small town of Salem, Massachusetts; accusations fly and many people are put to death.
The Loch Ness Monster
S4 E1
Despite centuries of sightings and searches, one deep-sea monster remains unidentified; as evidence continues to mount, the mystery endures as to whether the Loch Ness monster exists.
Who Is the Zodiac Killer?
S4 E2
In 1969, a serial killer taunts investigators with cryptic ciphers, leaving police and the public questioning his identity for over 50 years; new evidence and technology may finally be able to crack his code and discover who the Zodiac Killer is.
The Assassination of JFK
S4 E3
On November 22, 1963, President John F Kennedy is assassinated, shaking the nation to its core; while an initial suspect is captured, many believe there's more to the story; investigators and amateur sleuths alike have been searching for answers.
The Lost Colony of Roanoke
S4 E4
In 1587, a group of settlers land off the coast of North Carolina on Roanoke Island to establish the first English Colony in America; a few years later, the 115 men, women and children vanish without a trace, leaving only cryptic clues.
The Phoenix Lights Phenomenon
S4 E5
In 1997, thousands of people across Phoenix witness a series of strange lights unlike anything they've ever seen; many think this could be one of the largest-scale UFO sightings in history, but there may be another explanation.
The "Missingest" Man in America
S4 E7
In 1930, a New York Supreme Court justice with close ties to Tammany Hall, and future president Franklin Delano Roosevelt, steps out of a steakhouse and disappears; for decades, the case dominates mainstream media and remains unsolved.
Blackbeard's Lost Treasure
S4 E8
One of history's most notorious pirates, Blackbeard, is said to have had a treasure worth millions of dollars; after centuries of searching, the legendary hoard remains missing.
Decoding the Mysterious Antikythera Mechanism
S4 E9
An ancient mechanical device found on a 2,000-year-old shipwreck has become known as the world's first computer; the machine is centuries more advanced than historians thought possible, but its origin and true purpose are shrouded in secrecy.
The Puzzling Pyramids of Egypt
S4 E10
Awe-inspiring and mysterious, the pyramids of Egypt are significant wonders of the ancient world; more than 4,000 years old, they are celebrated architectural marvels, but no one fully understands how they were built or why.
The Hunt for Stolen Nazi Treasure
S4 E11
During World War Two, the Nazis stole vast amounts of art, gold, silver and currency, and stashed it across Europe; while some of the plunder has been recovered, much more is still missing nearly 80 years later.
The Deadly Bermuda Triangle
S4 E12
A look at what could cause mysterious vanishings in the Bermuda Triangle, a 500,000 square mile area of the Atlantic where ships, planes and unsuspecting travelers have been lost without a trace.
The Search for Noah's Ark
S4 E13
It's one of the most famous stories from the Bible; for thousands of years the tale of Noah's Ark is shared, but little is known about what happened to the ark.
Who Is D.B. Cooper?
S4 E14
It's the only unsolved air piracy case in history; in 1971, a man hijacks a Northwest Orient Airlines flight, demanding four parachutes and $200,000; he jumps out of the plane with the money and is never seen again.
The Legend of Bigfoot
S4 E15
Thousands of people swear they've encountered the legendary North American creature Bigfoot, but Bigfoot has never been officially identified; as evidence continues to mount, and photos are scrutinized, the mystery endures.
Unlocking the Secrets of Stonehenge
S4 E16
It's one of the most famous prehistoric monuments on Earth -- a mysterious arrangement of stones that have adorned the English countryside for millennia; nobody knows how the landmark was built or why.
The Search for El Dorado
S4 E17
It is a legendary ancient city, said to be overflowing with gold; for centuries, explorers put their lives on the line searching for it; the quest to uncover this infamous city continues.
The Mysterious Havana Syndrome
S4 E18
In 2016, a mysterious illness strikes dozens of government officials in Cuba; hundreds more are afflicted.
Unlocking the Secrets of the Nazca Lines
S4 E19
They've been called the world's greatest archaeological enigma: 2,000-year-old geoglyphs made in the Peruvian desert that span over 50 miles; the drawings are so massive, they can only be seen from the air.
The Hunt for Cleopatra's Missing Tomb
S4 E20
She was the last pharaoh of Egypt and one of the most famous queens of all time, but her death in 31 B.C. has been shrouded in mystery; Cleopatra's body and final resting place have been lost without a trace for over 2,000 years.
TWA Flight 800
S4 E21
In July 1996, one of the worst aviation disasters in American history leaves 230 people dead and countless questions unanswered; it's a tragedy that changes the aviation industry forever.
The Hunt for Hitler
S4 E22
The history books say Adolf Hitler committed suicide in the final days of World War II, but not everyone believes there's sufficient proof; questions have swirled for decades about his possible escape.
The Lost Gold of WWII
S4 E23
During World War II, Japan plunders a fortune worth hundreds of billions of dollars from occupied countries, but to this day its whereabouts are unknown.
The Black Dahlia
S4 E24
The gruesome murder of a young beauty goes unsolved for decades; there's a long line of suspects, each more mysterious than the next.
Gardner Museum Robbery
S4 E25
In a perfectly planned robbery, thieves steal half a billion dollars in masterpieces from the Gardner Museum in Boston; it's been three decades since the brazen heist, and an exhaustive search has failed to recover the stolen goods.
The Amber Room
S3 E1
One of World War II's greatest unsolved mysteries: an incomparable work of art worth half a billion dollars, lost without a trace; perhaps the single most valuable object the Nazis ever stole, the quest for this treasure has lasted over 75 years.
The Disappearance of Jimmy Hoffa
S3 E2
A powerful union activist disappears from a Detroit suburb; 45 years later, it remains one of the most notorious missing person cases of all time; the mystery of Jimmy Hoffa's disappearance features more twists and turns than a Hollywood movie.
The Dyatlov Pass Incident
S3 E3
An infamous Cold War cold case involving nine hikers found mutilated on a remote mountain slope; for over 60 years, authorities and amateurs alike have been trying to figure out what happened in a place that's been called "Russia's Area 51."
The Body on Somerton Beach
S3 E4
As the Cold War ramps up, a well-dressed man is found dead within miles of a nuclear testing site on a tranquil Australian beach; there are no clues to his identity or what could have happened.
The Amityville Horror
S3 E5
After a series of dark and ominous events, an unassuming family home on Long Island becomes the most notorious house in America; 50 years later, it's spawned a title wave of books, documentaries, and films.
The Holy Grail
S3 E6
It's a treasure coveted by everyone from Roman emperors to Adolf Hitler; a sacred object said to hold incredible powers of healing, resurrection and immortality, the Holy Grail is the most sought-after relic in the world.
Malaysia Flight 370
S3 E7
One of the most chilling aviation mysteries in modern day: a Boeing 777, carrying 239 people, vanishes over the Indian Ocean; nearly a decade later, no one knows what really happened to Malaysia Flight 370.
The Sodder Children Disappearance
S3 E8
On Christmas morning in 1945, five siblings vanish from their family home in West Virginia during a raging fire; despite the work of dozens of investigators and thousands of amateur sleuths, the mystery remains.
The Amazing Events of the Book of Exodus
S3 E9
The Burning Bush, the 10 Plagues and the Parting of the Red Sea; these Biblical events in "The Book of Exodus" have shaped Judeo Christian beliefs for centuries; But were these events divinely inspired miracles?
Jack the Ripper
S3 E10
A spree of gruesome murders by Jack the Ripper shocks Victorian England -- and the world; the homicidal maniac's identity still remains a mystery.
The Chicago Tylenol Murders
S3 E12
A series of unexplained deaths near Chicago in 1982 starts a nationwide panic; the victims are connected by one frightening detail: cyanide-tainted capsules of Extra-Strength Tylenol; 40 years later, it remains an active FBI investigation.
Secrets of the Copper Scroll
S3 E14
An ancient treasure map, recorded on a rare Copper Scroll, could lead to billions of dollars of buried treasure in gold, in silver, in jewels, hidden away thousands of years ago from Roman invaders.
The Children's Crusade
S3 E26
In Christianity's medieval battle to retake the Holy Land from Islam, the failure of wealthy Crusaders left a growing number of disgruntled Europeans.
Shackleton's Endurance: The Lost Ice Ship Found
S3 E99
Following news of the history-making discovery of Sir Ernest Shackleton's ship the Endurance, this is a look at his historic and ill-fated 1914 Antarctic expedition resulting in the loss of the highly revered ship.
Expedition Bermuda Triangle
S2 E1
A search into the extreme depths of the Bermuda Triangle, where five American torpedo bombers and the search plane dispatched to find them disappear without a trace in December 1945.
The Death of Bruce Lee
S2 E3
On July 20, 1973, martial arts superstar Bruce Lee dies under mysterious circumstances in Hong Kong, China.
Houdini's Lost Diaries
S2 E4
Magician and Houdini expert Bill Kalush secures access to Harry Houdini's diary previously kept from the public; experts begin to unveil the diary, using information gleaned from these personal accounts to form new insights into Houdini's life.
The Final Hunt for D.B. Cooper
S1 E1
With over 7,500 hours investigating the mystery; top D.B. Cooper expert Eric Ulis believes that he's found the true location where Cooper landed during his daring dive.
The Escape of John Wilkes Booth
S1 E4
Booth family members share family lore, and what they believe is evidence of the assassin's escape, passed down through generations.
Roswell: The First Witness - The Journal
S1 E5
A cryptic journal sparks an unprecedented investigation into whether a UFO crashed at Roswell, N.M., in 1947; Major Jesse Marcel's journal may contain coded clues to the truth behind Roswell.
Roswell: The First Witness - The Memo
S1 E6
A former CIA operative's investigation into the Roswell crash arrives at a critical moment when the mysterious journal found among the possessions of Maj. Jesse Marcel undergoes a crucial test.
Roswell: The First Witness - The Writer
S1 E7
Investigator Ben Smith travels to Jesse Marcel's hometown on Louisiana's Gulf Coast to speak with family members who reveal information that supports Marcel's story of a government coverup.