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History's Greatest Mysteries Season 4 Episodes
Season 4 Episode Guide
25 Episodes 2023 - 2023
Episode 1
The Loch Ness Monster
Mon, Jan 30, 2023
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? Presented are the top theories about this fabled monster.
Episode 2
Who is the Zodiac Killer?
Mon, Feb 6, 2023
In 1969, a serial killer dubbed The Zodiac Killer taunts investigators with cryptic ciphers, leaving law enforcement and the public questioning his identity for over 50 years. Investigators are hopeful that someday, evidence and technology may be able to crack his identity. Presented are the top six theories of who this mystery man might be. Law enforcement does have a partial DNA match of the killer that was obtained from the back of a postage stamp.
Episode 3
The Assassination of JFK
Mon, Feb 13, 2023
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.
Episode 4
The Lost Colony of Roanoke
Mon, Feb 20, 2023
In 1585 John White leaves the colony of Roanoke to get supplies from England, when he returns the colonists are gone without a trace. History's greatest mysteries delves into the theories behind what happened to the lost colony.
Episode 5
The Phoenix Lights Phenomenon
Mon, Feb 27, 2023
History's Greatest Mysteries delves into the popular theories behind the 1997 Phoenix Light Phenomena.
Episode 6
The Ark of the Covenant
Mon, Mar 6, 2023
History's Greatest Mysteries delves into the popular theories behind where the ark of the covenant may be held or hidden.
Episode 7
The "Missingest" Man in America
Mon, Mar 13, 2023
In 1930, a New York Supreme Court justice, Joseph Force Crater, had close ties to Tammany Hall and future president Franklin Delano Roosevelt. Judge Crater steps out of a steakhouse and disappears. For decades, the missing-person case dominates mainstream media and remains unsolved. Presented here are the top theories about his disappearance.
Episode 8
Blackbeard's Lost Treasure
Mon, Mar 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? Presented here are the top theories about where the treasure might be hidden.
Episode 9
Decoding the Mysterious Antikythera Mechanism
Mon, Mar 27, 2023
The discovery of an ancient device made well before it should have been possible leads historians to theorize about the origins of the Antikythera mechanism.
Episode 10
The Puzzling Pyramids of Egypt
Mon, Apr 17, 2023
History's Greatest Mysteries delves into the top theories behind why the ancient Egyptians built the pyramids.
Episode 11
The Hunt for Stolen Nazi Treasure
Mon, Apr 24, 2023
History's Greatest Mysteries delve into the top theories on where the Nazis hid the wealth they stole during WWII.
Episode 12
The Deadly Bermuda Triangle
Mon, May 1, 2023
History's greatest mysteries delve into the top theories behind why so many ships, planes, and people, go missing in the Bermuda Triangle.
Episode 13
The Search for Noah's Ark
Mon, May 8, 2023
History's greatest mysteries explores the top theories for where Noah's ark is located based on ancient accounts.
Episode 14
Who is D.B. Cooper?
Mon, May 15, 2023
Delve into the top theories surrounding the case of Dan Cooper, who hijacked a Northwest Orient Airlines flight, before disappearing without a trace.
Episode 15
The Legend of Bigfoot
Mon, May 22, 2023
There have been thousands of alleged sightings of Bigfoot across the US, but despite growing evidence, the creature has never been officially identified.
Episode 16
Unlocking the Secrets of Stonehenge
Mon, May 29, 2023
History's greatest mysteries explores the top theories behind how and why Stonehenge was built.
Episode 17
The Search for El Dorado
Mon, Jun 5, 2023
History's Greatest Mysteries delves into the top theories behind the location of El Dorado and the tales of those who have searched for it.
Episode 18
The Mysterious Havana Syndrome
Mon, Jun 12, 2023
History's Greatest Mysteries explore the top theories behind what caused unexplained illnesses in US diplomats in 2017; which became known as "The Havana Syndrome".
Episode 19
Unlocking the Secrets of the Nazca Lines
Mon, Jun 26, 2023
History's Greatest Mysteries explore the top theories behind why the ancient Peruvians built the Nazca Lines.
Episode 20
The Hunt for Cleopatra's Missing Tomb
Mon, Jul 10, 2023
History's Greatest Mysteries discuss the top theories behind where the tomb of Cleopatra may be located.
Episode 21
TWA Flight 800
Mon, Jul 17, 202341 mins
In mid July 1996, one of the worst aviation disasters in American history leaves 230 people dead and countless questions unanswered. It is a tragedy that changes the aviation industry forever, but what caused the explosion of TWA Flight 800?
Episode 22
The Hunt for Hitler
Mon, Jul 24, 202342 mins
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: did the Nazi leader really die in Berlin or was he able to escape? And if one of the most notorious dictators in history did escape, where did he go?
Episode 23
The Lost Gold of WWII
Mon, Jul 31, 202341 mins
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?
Episode 24
The Black Dahlia
Mon, Aug 7, 2023
Scholars and experts analyzed the brutal murder of Elizabeth Short also known as the Black Dahlia in Los Angeles, California in January 1947.
Episode 25
Gardner Museum Robbery
Mon, Aug 14, 2023
History's Greatest Mystery's explore the top theories behind who was behind the 1990 art theft at the Isabella Gardner Museum in Boston.
