History's Greatest Mysteries - Season 4

History's Greatest Mysteries - Season 4

Season 4

Network
Episodes25
DatesJan. 30, 2023 - Aug. 14, 2023
Previous SeasonNext Season

Episodes

The Loch Ness Monster
Season 4Episode 160 min

The Loch Ness Monster

Despite centuries of sightings and searches, one of the most infamous deep-sea monsters remains unidentified. As evidence continues to mount, the mystery endures: does the Loch Ness Monster really exist? And if so, what could it be?

Jan. 30, 2023
Who is the Zodiac Killer?
Season 4Episode 260 min

Who is the Zodiac Killer?

In 1969, one of history's most elusive serial killers terrorizes Northern California. He taunts investigators with cryptic ciphers and clues, leaving police and the public questioning his identity for over 50 years. Can new evidence and technology finally crack his code? Who is the Zodiac Killer?

Feb. 6, 2023
The Assassination of JFK
Season 4Episode 360 min

The Assassination of JFK

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.

Feb. 13, 2023
The Lost Colony of Roanoke
Season 4Episode 460 min

The Lost Colony of Roanoke

In 1587, a group of settlers land off the coast of North Carolina on Roanoke Island to establish the first English Colony in America. But only a few years later, the 115 men, women and children seemingly vanish without a trace, leaving only cryptic clues. The search to find out their fate has endured for over 400 years. Can new technology finally tell us what happened to the Lost Colony of Roanoke?

Feb. 20, 2023
The Phoenix Lights Phenomenon
Season 4Episode 560 min

The Phoenix Lights Phenomenon

In 1997, thousands of people across Phoenix witness a series of strange lights unlike anything they've ever seen. Could this be one of the largest-scale UFO sightings in history, or is there another explanation for this mysterious phenomenon?

Feb. 27, 2023
The Ark of the Covenant
Season 4Episode 660 min

The Ark of the Covenant

One of the holiest and most powerful relics from the Bible has been missing for over 2,000 years.  While some believe the Ark of the Covenant was destroyed, many people think it's still out there. Could new clues finally tell us what happened to the Ark, and lead us to where it can be found?

März 6, 2023
The 'Missingest' Man in America
Season 4Episode 760 min

The "Missingest" Man in America

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 politically charged case dominates mainstream media and remains unsolved nearly 100 years later. But could a deathbed confession finally tell us what really happened to the notorious Judge Joseph Crater.

März 13, 2023
Blackbeard's Lost Treasure
Season 4Episode 860 min

Blackbeard's Lost Treasure

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. As new evidence is unearthed, the mystery endures: what became of Blackbeard's lost treasure?

März 20, 2023
Decoding the Mysterious Antikythera Mechanism
Season 4Episode 960 min

Decoding the Mysterious Antikythera Mechanism

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. Can modern technology finally unveil what the mysterious Antikythera Mechanism actually is?

März 27, 2023
The Puzzling Pyramids of Egypt
Season 4Episode 1060 min

The Puzzling Pyramids of Egypt

Awe-inspiring and mysterious, the pyramids of Egypt are among the most significant wonders of the ancient world. More than 4,000 years old, they are among the most celebrated architectural marvels in the world. But no one fully understands how they were built, or why. Can we ever decipher the true purpose of Egypt's astonishing pyramids?

Apr. 17, 2023
The Hunt for Stolen Nazi Treasure
Season 4Episode 1160 min

The Hunt for Stolen Nazi Treasure

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. Where did the Nazis take their stolen loot? And can it ever be found?

Apr. 24, 2023
The Deadly Bermuda Triangle
Season 4Episode 1260 min

The Deadly Bermuda Triangle

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.

Mai 1, 2023
The Search For Noah's Ark
Season 4Episode 1360 min

The Search For Noah's Ark

It's one of the most famous stories from the Bible: God sends a flood to wipe out nearly every living thing on Earth, except for Noah, his family and the animals he saves in his fabled ark. For thousands of years the tale is shared, but little is known about what happened to the ark. Can scientific evidence prove if there really was a great flood? And if so, what happened to Noah's Ark?

Mai 8, 2023
Who Is D.B. Cooper?
Season 4Episode 1460 min

Who Is D.B. Cooper?

It's the only unsolved air piracy case in history. In 1971, a man hijacks a Northwest Orient Airlines flight, demanding 4 parachutes and $200,000. He jumps out of the plane with the money and is never seen again. Can new evidence finally reveal the identity of the anonymous hijacker known as D.B. Cooper?

Mai 15, 2023
The Legend of Bigfoot
Season 4Episode 1560 min

The Legend of Bigfoot

Thousands of people swear they've encountered this legendary North American creature, but Bigfoot has never been officially identified. As evidence continues to mount, and photos are scrutinized, the mystery endures: does Bigfoot really exist? And if so, what is it--and where is it?

Mai 22, 2023
Unlocking the Secrets of Stonehedge
Season 4Episode 1660 min

Unlocking the Secrets of Stonehedge

It's one of the most famous prehistoric monuments on Earth. A mysterious arrangement of stones that have adorned the English countryside for millennia. But to this day, nobody knows how the landmark was built or why. Can modern technology finally unlock its secrets? What is the true purpose of Stonehenge?

Mai 29, 2023
The Search for El Dorado
Season 4Episode 1760 min

The Search for El Dorado

It is a legendary ancient city, said to be overflowing with gold. For centuries, explorers put their lives on the line searching for it. As the endless quest to uncover this infamous city continues, will anyone ever find it?

Juni 5, 2023
The Mysterious Havana Syndrome
Season 4Episode 1860 min

The Mysterious Havana Syndrome

In 2016 a mysterious illness strikes dozens of government officials in Cuba. Over the next few years, hundreds more are afflicted. But investigations raise more questions than answers about this bizarre epidemic. What is the true cause of the strange phenomenon known as "Havana Syndrome?"

Juni 12, 2023
Unlocking the Secrets of the Nazca Lines
Season 4Episode 1960 min

Unlocking the Secrets of the Nazca Lines

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. Can new research finally unravel their secrets? What is the true purpose of the incredible Nazca Lines?

Juni 26, 2023
The Hunt for Cleopatra's Missing Tomb
Season 4Episode 2060 min

The Hunt for Cleopatra's Missing Tomb

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, leaving the world's top archaeologists baffled. Can new evidence finally uncover Cleopatra's missing tomb?

Juli 10, 2023
TWA Flight 800
Season 4Episode 2160 min

TWA Flight 800

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.

Juli 17, 2023
The Hunt for Hitler
Season 4Episode 2263 min

The Hunt for Hitler

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.

Juli 24, 2023
The Lost Gold of WWII
Season 4Episode 2363 min

The Lost Gold of WWII

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. Was the infamous treasure stashed in the Philippines, used to finance secret government operations, or frittered away by a famous corrupt leader? Treasure hunters still search for the lost gold of WWII, but will it ever be found?

Juli 31, 2023
The Black Dahlia
Season 4Episode 2463 min

The Black Dahlia

It's one of the most infamous crimes in American history: the gruesome murder of a young beauty, unsolved for decades. There's a long line of suspects, each more mysterious than the next. Can the questions surrounding one of history's most notorious unsolved cases finally be answered?

Aug. 7, 2023
Gardner Museum Robbery
Season 4Episode 2563 min

Gardner Museum Robbery

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.

Aug. 14, 2023

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