The WORST episodes of History's Greatest Mysteries

Every episode of History's Greatest Mysteries ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of History's Greatest Mysteries!

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.

Last Updated: 5/5/2025Network: History ChannelStatus: Continuing
star
0.00
0 votes

#1 - The Missing Riches of Genghis Khan

Season 6 - Episode 12 - Aired 5/5/2025

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.

Watch Now:Amazon
Roswell: The First Witness – The Writer
star
6.63
57 votes

#2 - Roswell: The First Witness – The Writer

Season 1 - Episode 7 - Aired 12/26/2020

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. Smith speaks with Leslie Kean, the investigative journalist who broke The New York Times story about a clandestine U.S. government program to investigate UFOs. Smith also digs deeper into the mystery of the journal as he studies writing samples to determine if the journal might have been written by one of Marcel's fellow officers who later claimed he was ordered to oversee the military's coverup. Back in Marcel's hometown, Smith meets with a man who swears Marcel confided in him about alien bodies-- something Marcel had never mentioned to the press or family. As the results come back from soil, metal and forensic handwriting analysis, Smith shares his findings with the Marcel grandchildren.

Watch Now:AmazonApple TV
The Phoenix Lights Phenomenon
star
6.78
50 votes

#3 - The Phoenix Lights Phenomenon

Season 4 - Episode 5 - Aired 2/27/2023

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?

Watch Now:AmazonApple TV
The Ark of the Covenant
star
6.78
46 votes

#4 - The Ark of the Covenant

Season 4 - Episode 6 - Aired 3/6/2023

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?

Watch Now:AmazonApple TV
The Amityville Horror
star
6.84
45 votes

#5 - The Amityville Horror

Season 3 - Episode 5 - Aired 3/21/2022

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; but do haunted houses really exist? Who--or what--is really responsible for the Amityville horror?

Watch Now:AmazonApple TV
Expedition Bermuda Triangle
star
6.86
58 votes

#6 - Expedition Bermuda Triangle

Season 2 - Episode 1 - Aired 9/7/2021

On December 5, 1945, five American WW2 torpedo bombers took off from Florida with all men and planes disappearing without a trace. Hours later, the search plane dispatched to find them, also vanished, believed to be lost to the infamous Bermuda Triangle. The number of men tragically lost that day totaled 27 and 75 years later, it remains an unsolved mystery. No ship in history has searched the extreme depths of the Bermuda Triangle, thought to have claimed over 1,000 ships and planes, until now. The late Paul Allen's ship, R/V Petrel, the most advanced search vessel of its kind, will deploy a wide array of cutting edge technology including deep-diving submersibles to investigate three miles down, in an effort, to find the lost squadron and solve the mystery that began the legend of the Bermuda Triangle.

Watch Now:AmazonApple TV
Who is D.B. Cooper?
star
6.89
36 votes

#7 - Who is D.B. Cooper?

Season 4 - Episode 14 - Aired 5/15/2023

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.

Watch Now:AmazonApple TV
Jack the Ripper
star
6.95
40 votes

#8 - Jack the Ripper

Season 3 - Episode 10 - Aired 5/2/2022

A spree of gruesome murders shocks Victorian England--and the world. The homicidal maniac responsible remains a mystery. Can history's most notorious serial killer ever be identified? Who is Jack the Ripper?

Watch Now:AmazonApple TV
Hunting Hitler’s U-Boats
star
6.95
63 votes

#9 - Hunting Hitler’s U-Boats

Season 2 - Episode 2 - Aired 9/14/2021

An investigation into the unshakable claims of Roger Miklos, one of America's most eccentric, controversial, and accomplished treasure hunters. Decades before his death in 2018, Roger believed he discovered a modified Nazi U-boat loaded with a fortune in artwork, antiquities, and gold off the coast of Turks and Caicos. Before he passed, Roger gave an exclusive interview that revealed clues about the possible position of the U-boat and left behind a trove of documents, maps, and photographs. Now, armed with this evidence, celebrated diver Mike Fletcher and his team will take to the high seas in search of the special U-boat.

Watch Now:AmazonApple TV
Endurance: The Hunt for Shackleton's Ice Ship
star
6.97
63 votes

#10 - Endurance: The Hunt for Shackleton's Ice Ship

Season 1 - Episode 3 - Aired 11/28/2020

In 1914, Sir Ernest Shackleton led an expedition to Antarctica but soon after arrival, Shackleton's ship--The Endurance--was destroyed by shifting glaciers, and he was tasked with leading his 27 men across the tundra, on an epic struggle for survival. Shackleton's battle against the odds and his unfailing commitment to bring all his men out alive turned him into a legend. The ship's final resting ground remains one of the greatest polar mysteries. Led by maritime archeologist and shipwreck expert, Mensun Bound, follow a new ground-breaking expedition heading back into the frozen seas to hunt down Shackleton's lost ship.

Watch Now:Amazon
The Loch Ness Monster
star
6.98
57 votes

#11 - The Loch Ness Monster

Season 4 - Episode 1 - Aired 1/30/2023

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.

Watch Now:Amazon
The Death of Dillinger
star
7.00
10 votes

#12 - The Death of Dillinger

Season 6 - Episode 11 - Aired 4/28/2025

He was the first Public Enemy Number One--the legendary outlaw John Dillinger. His life consisted of brazen bank robberies across the country, but his death remains shrouded in mystery. What really happened to John Dillinger?

Watch Now:AmazonApple TV
The Hunt for Hitler
star
7.00
53 votes

#13 - The Hunt for Hitler

Season 4 - Episode 22 - Aired 7/24/2023

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.

Watch Now:AmazonApple TV
The Final Hunt for D.B. Cooper
star
7.03
111 votes

#14 - The Final Hunt for D.B. Cooper

Season 1 - Episode 1 - Aired 11/14/2020

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.

Watch Now:AmazonApple TV
The Sodder Children Disappearance
star
7.05
40 votes

#15 - The Sodder Children Disappearance

Season 3 - Episode 8 - Aired 4/18/2022

A cold case that ignites every parent's worst fears: on Christmas morning, 1945, five siblings vanish from their family home in West Virginia during a raging fire. The devastated Sodder family spends the rest of their lives trying to find out what happened. Despite the work of dozens of investigators and thousands of amateur sleuths, the mystery remains: what happened to the Sodder children?

Watch Now:Amazon
Roswell: The First Witness – The Memo
star
7.06
66 votes

#16 - Roswell: The First Witness – The Memo

Season 1 - Episode 6 - Aired 12/19/2020

A former CIA operative's investigation into the Roswell crash arrives at a critical moment when the mysterious journal found among the possessions of Major Jesse Marcel undergoes a crucial test. As a US Army intelligence officer, Marcel was the first government official at the crash site. Investigator Ben Smith is taken to a secret location believed to be the real resting place of the airborne object, as a local archeologist finds evidence that a military cleanup may have taken place. A leading code-breaker continues his attempt to decipher the journal which may be written in a home-brewed code and contain hidden information about what happened at Roswell. And witnesses describe a series of bizarre events surrounding the now legendary crash, while an incredible new technology attempts to read words on a 70 year old photograph that may hold clues to the mystery: Did an extraterrestrial spaceship crash at Roswell?

Watch Now:AmazonApple TV
The Death and Fortune of Pablo Escobar
star
7.06
16 votes

#17 - The Death and Fortune of Pablo Escobar

Season 6 - Episode 6 - Aired 3/10/2025

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.

Watch Now:AmazonApple TV
The Voynich Manuscript
star
7.06
47 votes

#18 - The Voynich Manuscript

Season 3 - Episode 9 - Aired 4/25/2022

It might be the world's most mysterious book: a medieval manuscript filled with unidentifiable drawings, written in a secret language so complex that even the world's best code breakers can't crack it. It's obsessed everyone from scholars to conspiracy theorists. What is the Voynich Manuscript? And who wrote it?

Watch Now:Amazon
Houdini’s Lost Diaries
star
7.07
43 votes

#19 - Houdini’s Lost Diaries

Season 2 - Episode 4 - Aired 9/28/2021

Harry Houdini left behind a diary that had been kept from the public, held under lock and key by a wealthy New York City Family. Now, magician and Houdini expert Bill Kalush has finally secured access to these pages. A team of experts will begin to unveil the diary, using new information gleaned from these personal accounts to form new insights into this enigmatic man's life. But Houdini's humble rise to fame eventually turns into a dark web of mysteries shrouding the truth behind this legend's end. From vindictive competitors to a man driven to failure by his own ambitions, the cause of Houdini's sudden death has remained unsolved, until now.

Watch Now:AmazonApple TV
The Search for Noah's Ark
star
7.07
55 votes

#20 - The Search for Noah's Ark

Season 4 - Episode 13 - Aired 5/8/2023

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.

Watch Now:AmazonApple TV
The Franklin Expedition
star
7.09
22 votes

#21 - The Franklin Expedition

Season 6 - Episode 2 - Aired 2/3/2025

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. That disappearance sparks a search for clues spanning nearly two centuries... and leading to unthinkable ends. What really killed the men of the Franklin Expedition?

Watch Now:AmazonApple TV
Blackbeard's Lost Treasure
star
7.09
55 votes

#22 - Blackbeard's Lost Treasure

Season 4 - Episode 8 - Aired 3/20/2023

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?

Watch Now:AmazonApple TV
The Escape of John Wilkes Booth
star
7.09
66 votes

#23 - The Escape of John Wilkes Booth

Season 1 - Episode 4 - Aired 12/5/2020

He was the actor whose most famous role was assassinating a president. But was John Wilkes Booth also an escape artist? Did Booth evade justice and live for decades after killing Abraham Lincoln? For the first time, Booth family members share family lore, and what they believe is evidence of the assassin's escape, passed down through generations.

Watch Now:AmazonApple TV
The Disappearance of Jimmy Hoffa
star
7.09
54 votes

#24 - The Disappearance of Jimmy Hoffa

Season 3 - Episode 2 - Aired 2/28/2022

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.

Watch Now:AmazonApple TV
The Amazing Events of the Book of Exodus
star
7.10
10 votes

#25 - The Amazing Events of the Book of Exodus

Season 6 - Episode 9 - Aired 4/14/2025

The Burning Bush, the 10 Plagues, the Parting of the Red Sea...these legendary Biblical events in the Book of Exodus have shaped Judeo Christian beliefs for centuries. But were these events divinely inspired miracles, or do they have a more earthly explanation? Is it possible some of these famous legends in the Book of Exodus aren't parables... but rooted in fact?

Watch Now:AmazonApple TV