Last episode
The Death of Alexander the Great
s07e17 · 2026-08-18
Running · US
History's Greatest Mysteries
History Documentary Next s07e18 · 2026-08-25
What it is
History's Greatest Mysteries will investigate a wide range of historically compelling topics and the mysteries surrounding each including the Titanic, D.B. Cooper, Roswell, John Wilkes Booth, and more. Each program within the franchise will showcase fresh, new evidence and perspectives including never-before-released documents to the general public, personal diaries and DNA evidence to unearth brand-new information about these infamous and enigmatic chapters in history.
Episode highlights
Next episode
Lost Civil War Gold
s07e18 · 2026-08-25
Episode guide
15 this season · 103 totals05e01 Montezuma's Lost Treasure 2024-01-30 02:00
Montezuma's Lost Treasure
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, but its whereabouts remains a mystery. What really happened to Montezuma's lost treasure?
s05e02 The Garden of Eden 2024-02-06 02:00
The Garden of Eden
Most people know it as the biblical birthplace of man--The Garden of Eden. But is the Garden of Eden really just a story to explain human creation? Or could it be a real place? And if the Garden of Eden did exist--where exactly was it? Some of the possibilities may surprise you.
s05e03 The Lost Fortune of the Knights Templar 2024-02-13 02:00
The Lost Fortune of the Knights Templar
Over seven hundred years ago, a medieval religious order protected a vast treasure of gold silver, precious gems, and religious relics... and then it all mysteriously vanished. For centuries, historians and fortune hunters have crossed continents searching for these ancient riches, which would be worth billions today. What happened to the secret hoard of the Knights Templar?
s05e04 The Shroud of Turin 2024-02-20 02:00
The Shroud of Turin
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.
s05e05 Captain Kidd's Treasure 2024-03-05 02:00
Captain Kidd's Treasure
It's a mystery from the golden age of piracy. In 1698, Captain 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. What happened to Captain Kidd's lost booty... and where is it now?
s05e06 Escape from Alcatraz 2024-03-12 01:00
Escape from Alcatraz
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. But is it really possible they survived -- and if so, where did they go?
s05e07 The Battle of Los Angeles 2024-03-19 01:00
The Battle of Los Angeles
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. Air raid sirens send citizens scrambling, as troops fire more than 1400 rounds of anti-aircraft artillery at the illusive targets. When the smoke clears, the incident is veiled in secrecy and lies. What exactly triggered the so-called Battle of Los Angeles?
s05e08 The Mystery of Machu Picchu 2024-03-26 01:00
The Mystery of Machu Picchu
With 500-year-old secrets hidden in skeletons and stone, Machu Picchu is one of the most puzzling archaeological sites on earth. It's among the ancient world's most enduring riddles: Who built this astonishing complex, and why?
s05e09 Who Killed King Tut? 2024-06-04 01:00
Who Killed King Tut?
The death of one of history's most enigmatic rulers--Egypt's King Tutankhamun--remains shrouded in mystery 3300 years later. No one knows for sure what ended the young pharaoh's life, but scientific advancements may be getting us closer to the answer. Who, or what, killed King Tut?
s05e10 The Hindenburg Disaster 2024-06-11 01:00
The Hindenburg Disaster
For decades, experts believed they knew what caused the Hindenburg disaster: that leaking hydrogen ignited--causing the airship to burst into flames. But there may be more to this story. Whatever triggered the explosion, it didn't just spell doom for the Hindenburg but for the entire rigid airship industry. What caused the Hindenburg Disaster?
s05e11 The Search for Alexander the Great 2024-06-18 01:00
The Search for Alexander the Great
The story of the most celebrated warrior king in history still stirs fascination more than 2,000 years after his death. But the location of his body is the subject of much debate. When his remains suddenly disappear without a trace, a search across the ancient world ensues. What happened to the mummy of Alexander the Great?
s05e12 The Sinking of the Titanic 2024-06-25 01:00
The Sinking of the Titanic
The Titanic's tragic story captures the imagination of the public and experts of all kinds, who--decades after the ship's demise--still seek answers. Can new evidence reveal more about how--and why--the Titanic sank?
s05e13 The Legend of the Lost Dutchman's Mine 2024-07-02 01:00
The Legend of the Lost Dutchman's Mine
The search for the most famous gold mine in the Old West has led many to perish in the pursuit of its elusive riches. Legend suggests the gold, and the land it's hidden on, are somehow cursed--yet treasure hunters still come to the Superstition Mountains looking for the hidden hoard. But where exactly is the Lost Dutchman's mine?
s05e14 The Assassination of RFK 2024-07-09 01:00
The Assassination of RFK
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. Who is really behind the killing of Robert Kennedy, and why?
s05e15 The Salem Witch Trials 2024-07-16 01:00
The Salem Witch Trials
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. But what really sparked the Salem Witch Trials?