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: 11/3/2024Network: History ChannelStatus: Continuing
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Roswell: The First Witness – The Writer
star
6.64
56 votes

#1 - 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.

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The Phoenix Lights Phenomenon
star
6.79
47 votes

#2 - 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?

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The Ark of the Covenant
star
6.79
43 votes

#3 - 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?

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The Amityville Horror
star
6.81
43 votes

#4 - 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?

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Who is D.B. Cooper?
star
6.85
33 votes

#5 - 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.

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Expedition Bermuda Triangle
star
6.88
56 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.

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Hunting Hitler’s U-Boats
star
6.90
60 votes

#7 - 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.

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The Loch Ness Monster
star
6.94
53 votes

#8 - 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.

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Jack the Ripper
star
6.95
39 votes

#9 - 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?

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Endurance: The Hunt for Shackleton's Ice Ship
star
7.00
60 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.

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Blackbeard's Lost Treasure
star
7.04
52 votes

#11 - 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?

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The Hunt for Hitler
star
7.04
51 votes

#12 - 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.

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The Deadly Bermuda Triangle
star
7.04
47 votes

#13 - The Deadly Bermuda Triangle

Season 4 - Episode 12 - Aired 5/1/2023

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.

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The Sodder Children Disappearance
star
7.05
38 votes

#14 - 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?

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The Final Hunt for D.B. Cooper
star
7.07
107 votes

#15 - 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.

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The Voynich Manuscript
star
7.07
45 votes

#16 - 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?

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Houdini’s Lost Diaries
star
7.07
42 votes

#17 - 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.

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Roswell: The First Witness – The Memo
star
7.08
65 votes

#18 - 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?

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The Escape of John Wilkes Booth
star
7.11
64 votes

#19 - 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.

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The Search for Noah's Ark
star
7.12
52 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.

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The Disappearance of Jimmy Hoffa
star
7.12
52 votes

#21 - 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.

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Titanic's Lost Evidence
star
7.13
80 votes

#22 - Titanic's Lost Evidence

Season 1 - Episode 2 - Aired 11/21/2020

A dust-covered box hidden in a British manor house for 108 years contains the personal notes of Lord Mersey, the respected British jurist and politician charged with investigating the sinking of the Titanic in 1912.

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The Legend of Bigfoot
star
7.15
39 votes

#23 - The Legend of Bigfoot

Season 4 - Episode 15 - Aired 5/22/2023

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.

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Roswell: The First Witness - The Journal
star
7.17
88 votes

#24 - Roswell: The First Witness - The Journal

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

A cryptic journal sparks an unprecedented investigation into whether a UFO crashed at Roswell, NM in 1947. Major Jesse Marcel, the first government official on the scene, believed to his dying day that an extraterrestrial spaceship plummeted to earth and the U.S. government covered it up. Now, the Marcel family has come forward with a journal found among Marcel's possessions. The journal may contain coded-clues to the truth behind Roswell. Former CIA operative Ben Smith embarks on a new investigation that includes a cryptographic analysis of the journal, a high tech geological study of the crash site, and interviews with witnesses who have never spoken publicly. What really crashed in Roswell? The US government claimed it was a weather balloon and then changed its story. Others spoke of alien bodies, and extreme government intimidation.

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The "Missingest" Man in America
star
7.18
45 votes

#25 - The "Missingest" Man in America

Season 4 - Episode 7 - Aired 3/13/2023

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?

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