| Stonehenge |
England |
Prehistoric monument consisting of a ring of standing stones. |
Prehistoric |
Unsolved |
| Great Pyramids of Giza |
Egypt |
Ancient pyramid structures with uncertain construction methods. |
c. 2580–2560 BC |
Unsolved |
| Lost City of Atlantis |
Atlantic Ocean |
Legendary island mentioned by Plato, believed to be advanced civilization. |
c. 360 BC |
Unsolved |
| Shroud of Turin |
Italy |
A piece of linen believed by some to be the burial cloth of Jesus. |
Middle Ages |
Controversial |
| Voynich Manuscript |
Italy |
An illustrated codex written in an unknown writing system, undecoded text. |
c. 1400 |
Unsolved |
| Rosetta Stone |
Egypt |
Stone inscribed with a decree in three scripts, key to deciphering hieroglyphs. |
196 BC |
Decoded |
| Nazca Lines |
Peru |
Geoglyphs in the Nazca Desert, purpose and method of creation unknown. |
c. 500 AD |
Unsolved |
| Crystal Skull |
Mexico |
Allegedly pre-Columbian Mesoamerican artifact; authenticity disputed. |
19th Century |
Controversial |
| D.B. Cooper Heist |
USA |
Unsolved case of a hijacking in which the perpetrator vanished with a ransom. |
1971 |
Unsolved |
| Amber Room |
Russia |
World War II-era treasure that was looted; exact fate unknown. |
18th Century |
Missing |
| Beale Ciphers |
USA |
Set of three ciphertexts that purportedly lead to buried treasure. |
19th Century |
Unsolved |
| Stone Balls of Costa Rica |
Costa Rica |
Large stone spheres of unknown purpose and origin. |
AD 600-1500 |
Unsolved |
| Rongorongo |
Easter Island |
Pictographic script that remains undeciphered. |
c. 1800 |
Unsolved |
| Mohenjo-Daro |
Pakistan |
Ancient Indus Valley Civilization city, reasons for decline unclear. |
c. 2500 BC |
Unsolved |
| The Zodiac Killer |
USA |
Unidentified serial killer who taunted police with letters and ciphers. |
1960s-1970s |
Unsolved |
| The Bermuda Triangle |
Atlantic Ocean |
Area where ships and planes disappear under mysterious circumstances. |
Various |
Controversial |
| Chichen Itza |
Mexico |
Mayan temple complex, reason for its decline largely debated. |
c. 600 AD |
Unsolved |
| U-boat 534 |
Germany |
German submarine sunk during WWII, rumored to hold treasure. |
1945 |
Unsolved |
| Ancient Astronauts |
Various |
Theory that extraterrestrial beings visited and influenced ancient cultures. |
Various |
Controversial |
| Bigfoot |
USA |
Legendary ape-like creature purportedly seen in North American forests. |
Various |
Unsolved |
| El Dorado |
South America |
Mythical city of gold sought by explorers in the 16th century. |
16th Century |
Unsolved |
| Lake Vostok |
Antarctica |
Subglacial lake, potential harbor for unsampled life forms. |
Various |
Controversial |
| The Lost Colony of Roanoke |
USA |
English colony that disappeared without trace in the late 16th century. |
1587 |
Unsolved |
| The Wow! Signal |
Outer Space |
Strong narrowband radio signal detected by SETI, source unknown. |
1977 |
Unsolved |
| The Man in the Iron Mask |
France |
Mysterious prisoner of French king, identity remains debated. |
17th Century |
Unsolved |
| Taman Shud Case |
Australia |
Unsolved mystery involving a unidentified body found in 1948 with a cryptic note. |
1948 |
Unsolved |
| Codex Gigas |
Czech Republic |
Giant medieval manuscript with complex history and mythos. |
Early 13th Century |
Mysterious |
| Circle of Wagons |
USA |
Theories surrounding a circle of stones in the Dakota Badlands. |
Unknown |
Unsolved |
| Weirdstone of Brisingamen |
Norway |
Theories regarding the ancient stone and its origins in mythology. |
Unknown |
Unsolved |
| Prince Madoc |
Wales/USA |
Legend of a Welsh prince who allegedly discovered America before Columbus. |
12th Century |
Unsolved |
| Atlantis of the Sands |
Arabia |
Mythical lost city believed to be hidden in the Arabian desert. |
Unknown |
Unsolved |
| Vimana |
India |
Mythical flying machines described in ancient Indian texts; existence debated. |
Ancient |
Controversial |
| Great Wall of China secret |
China |
Legends of hidden sections and passages in the wall. |
BC - 16th Century |
Unsolved |
| Fountain of Youth |
Florida |
Mythical spring that supposedly restores youth, sought by explorers. |
16th Century |
Unsolved |
| Mystery of the Templars |
Europe |
Disappearance of the Knights Templar and their alleged treasures. |
14th Century |
Unsolved |
| Sacred Stones of Stonehenge |
England |
Purpose and significance of the stones remain largely speculative. |
Prehistoric |
Unsolved |
| The Mokele-Mbembe |
Congo River Basin |
Legendary creature allegedly resembling a sauropod dinosaur. |
Various |
Unsolved |
| The Lost Treasure of the Confederacy |
USA |
Gold rumored to be hidden by the Confederate army at the end of the Civil War. |
1865 |
Unsolved |
| Rapa Nui's Collapse |
Easter Island |
Reasons for the collapse of the Rapa Nui civilization debated. |
17th Century |
Unsolved |
| The Black Dahlia Murder |
USA |
Murder of Elizabeth Short, remains unsolved with numerous theories. |
1947 |
Unsolved |
| Antikythera Mechanism |
Greece |
Ancient analog computer; full understanding of its functions unclear. |
c. 100 BC |
Controversial |
| Ancient City of Petra |
Jordan |
Lost city rediscovered in the 19th century, origins still debated. |
AD 400 |
Unsolved |
| Romulus and Remus |
Italy |
Founders of Rome, mythology and historical origins controversial. |
c. 771 BC |
Unsolved |
| Murder of King Tutankhamun |
Egypt |
Circumstances surrounding the death of the young Pharaoh remain unclear. |
1323 BC |
Unsolved |
| The Green Children of Woolpit |
England |
Legends of two green-skinned children said to have appeared in medieval England. |
12th Century |
Unsolved |
| Marfa Lights |
Texas |
Unexplained lights seen in the desert, various theories attempted. |
Various |
Unsolved |
| The Lost City of Z |
Amazon Rainforest |
Theories around a lost city in the Amazon sought by Percy Fawcett. |
20th Century |
Unsolved |
| White City of the Monkey God |
Honduras |
Legend of a lost city in the Honduran jungle discovered in recent years. |
20th Century |
Unsolved |
| The Oak Island Mystery |
Canada |
Treasure hunt on Oak Island with a series of complex traps and underground features. |
18th Century |
Unsolved |
| The Phaistos Disc |
Crete |
Clay disk with mysterious symbols, the purpose and meaning unresolved. |
c. 1700 BC |
Unsolved |
| The Killer of the Louvre |
France |
Unsolved mystery of a thief who eluded capture in a high-profile heist at the Louvre. |
19th Century |
Unsolved |
| The Great Mississippi Flood of 1927 |
USA |
Reasons for the extensive destruction remained largely debated after the event. |
1927 |
Unsolved |
| Archimedes' Lost Works |
Greece |
Several ancient works by Archimedes are known to have existed but are lost. |
c. 287 BC |
Unsolved |
| Yeti |
Himalayas |
Legend of a mythical ape-like creature; no scientific evidence confirms existence. |
Various |
Unsolved |
| Planudon |
South America |
A mystery surrounding a possible ancient species of unknown origin. |
Unknown |
Unsolved |
| The Dancing Plague |
Europe |
A mysterious case of uncontrollable dancing in several people in Strasbourg. |
1518 |
Unsolved |
| The Hindenburg Disaster |
USA |
Questions remain regarding the reasons behind the rapid fire of the airship. |
1937 |
Unsolved |
| Will-o'-the-wisp |
Various |
Mysterious lights seen in swamps, often attributed to supernatural causes. |
Various |
Unsolved |
| Basque Witch Trials |
Spain |
Trials of alleged witches during 17th century; motivations not clearly understood. |
17th Century |
Unsolved |
| Great Schism of 1054 |
Europe |
Division between Eastern Orthodox and Roman Catholic Churches, roots still debated. |
1054 |
Unsolved |
| Codex Mendoza |
Mexico |
Aztec codex detailing history and tributes; uncertain original purpose. |
1541 |
Mysterious |
| Balloon Boy Hoax |
USA |
Infamous hoax involving a child supposedly flying in a homemade balloon; motivations unclear. |
2009 |
Hoax |
| Celestial Teapot |
UK |
Philosophical argument regarding the existence of God; no empirical evidence seen. |
18th Century |
Philosophical |
| The Wall of Jericho |
Israel |
Story of the ancient city and its walls remains one of historical debate. |
c. 1400 BC |
Uncertain |
| The Third Man Factor |
Various |
Phenomenon where individuals report a comforting presence in life-threatening situations. |
Various |
Unsolved |
| Stone of Scone |
Scotland |
Symbolic stone of Scottish kings, mystery surrounding its theft and return. |
1296 & 1996 |
Controversial |
| Dead Sea Scrolls |
Israel |
Ancient manuscripts that sparked debates on their origins and implications. |
1947 |
Controversial |
| Serpent Mound |
Ohio |
Ancient effigy mound with unclear purpose, debated among archaeologists. |
c. 1000 BC |
Unsolved |
| Lost Roman Legion |
Italy |
Legendary tales of a Roman legion lost in the mists of time. |
Various |
Unsolved |
| The Emperor's New Clothes |
Denmark |
Story about vanity and deception, underlying social truths debated. |
1837 |
Philosophical |
| The Immortal Jellyfish |
Worldwide |
A jellyfish species capable of biological immortality; full understanding unresolved. |
20th Century |
Scientific Mystery |
| Ichthyosaur Fossil |
Germany |
Fossil with continued questions surrounding its discovery and lineage. |
19th Century |
Unsolved |
| The Sator Square |
Various |
Latin word square with mysterious implications; meanings debated. |
Ancient Rome |
Unsolved |
| Brass Plates of Mormonism |
USA |
Alleged historical plates of ancient origin central to LDS faith; authenticity debated. |
19th Century |
Unsolved |
| King Arthur's Grave |
England |
Many believe they have found it, but authenticity remains under debate. |
6th Century |
Unsolved |
| Allegorical Black Book of Murder |
Various |
Collection of stories with themes of death; origins unclear. |
19th Century |
Unsolved |
| The Piltdown Man |
UK |
Fossil hoax that fooled the scientific community for decades; motives and origins debated. |
1912-1953 |
Debunked |
| Death of Cleopatra |
Egypt |
The circumstances of her death have many theories but no definitive answers. |
30 BC |
Unsolved |
| Gradualist vs. Catastrophist |
Various |
Theories surrounding geological history and extinction events remain contentious. |
Great Deal |
Scientific Debate |
| The Hopi Blue Star Prophecy |
USA |
A prophecy forecasting disasters in the modern world; interpretations vary widely. |
20th Century |
Unsolved |
| The Beheaded Corpse of Thomas Becket |
England |
Remain astonishingly well-preserved, its discovery remains debated. |
12th Century |
Controversial |
| The Mummy's Curse |
Various |
Legends that cursed those who disturbed Egyptian tombs abound, mostly anecdotal. |
Various |
Controversial |
| Greenland's Viking Settlement |
Greenland |
Reasons for collapse of Norse settlements debated among historians. |
c. 1500 |
Unsolved |
| Riddle of the Sphinx |
Egypt |
The Sphinx legacy and the riddle attributed to it uncover many possibilities. |
c. 2500 BC |
Unsolved |
| The Alchemist's Gold |
Various |
The quest for the Philosopher's Stone and the secrets to alchemical transmutation. |
Middle Ages |
Controversial |
| The Lady of the Lake |
Britain |
A mysterious figure in Arthurian legend, representation debated. |
Unknown |
Unsolved |
| The Lake Michigan Triangle |
USA |
Area known for mysterious disappearances of ships and aircraft. |
Various |
Unsolved |
| Operation Northwoods |
USA |
Plans for false-flag terror attacks by the US government; authenticity disputed. |
1962 |
Controversial |
| The Secret of the Bermuda Triangle |
Atlantic Ocean |
Focus on the mysteries surrounding shipping and aircraft disappearances. |
Various |
Controversial |
| Mayan Calendar Prophecies |
Mesoamerica |
Interpretations of the Mayan calendar's end date and related events vary widely. |
2012 |
Controversial |
| Grammar of the Maya Script |
Mesoamerica |
The extent of understanding the ancient Maya writing system remains elusive. |
Unknown |
Unsolved |
| Hesperian Mines |
Various |
Mythical riches described in several ancient texts that have never been verified. |
Various |
Unsolved |
| Death of Marilyn Monroe |
USA |
Surrounding circumstances of her death remain clouded in controversy. |
1962 |
Unsolved |
| Zedong's Little Diary |
China |
Majestic volume of Mao's essays has mysterious implications and wrote legacy debates. |
20th Century |
Controversial |
| The Taman Shud Case |
Australia |
Unsolved mystery surrounding the death of an unidentified man on Somerton Beach. |
1948 |
Unsolved |
| The Mystery of the Abominable Snowman |
Himalayas |
Stories and sightings of a creature yet to be independently verified. |
Various |
Unsolved |
| The Sunken City of Dwarka |
India |
Theories regarding the historical existence of the submerged city legend persist. |
c. 2500 BC |
Unsolved |
| The Secrets of the Alhambra |
Spain |
Mysterious symbols and meanings behind this monumental structure continue to elude. |
13th Century |
Unsolved |
| Chupacabra |
Puerto Rico |
Legend of a blood-sucking creature remains a controversial topic in cryptozoology. |
1995 |
Unsolved |
| The Nyaminyami River Monster |
Zambia |
A cryptid said to inhabit the Zambezi River; sightings contested. |
Various |
Unsolved |
| Civilization of the Indus Valley |
Pakistan/India |
Unknown reasons for urban planning and subsequent decline of this civilization. |
c. 2500 BC |
Unsolved |
| The Omaha Platform |
USA |
Political document advocating several progressive reforms debated in the 1890s. |
1892 |
Controversial |
| Machu Picchu Social Structure |
Peru |
Social organization of the Inca site lacks clarity and understanding of evidence. |
c. 1450 |
Unsolved |
| Operation Ajax |
Iran |
CIA operation in Iran that overthrew Mohammad Mossadegh; implications debated. |
1953 |
Controversial |
| The Hill of Crosses |
Lithuania |
A site with thousands of crosses, origins and meanings remain debated. |
Unknown |
Controversial |
| The Oldest Artifacts of Humanity |
Various |
Debate over the oldest known human-made objects and their origins.”,Various" |
Controversial |
NaN |
| The Alamo's true history |
USA |
Confusion over events at the Battle of the Alamo prompts spirited debate. |
1836 |
Controversial |
| The Witch of Maple Street |
USA |
A local legend involving a woman purportedly possessing supernatural powers. |
Unknown |
Unsolved |
| The Copper Scroll |
Israel |
A scroll detailing possible treasure locations by the Dead Sea; exact whereabouts unknown. |
c. 50 AD |
Unsolved |
| The Enigma of King Solomon's Mines |
Africa |
Legends surrounding mines of great wealth attributed to Solomon remain unverified. |
Unknown |
Unsolved |
| The Templars and the Sacred Chalice |
France |
Connections between the Templars and relics of the cup of Christ are ongoing debate. |
14th Century |
Unsolved |
| The Disappearance of the Sodder Children |
USA |
Joyful disappearance of several children in 1945 remains an enduring mystery. |
1945 |
Unsolved |
| The Riddle of the Spinx |
Egypt |
Historical significance and purpose of the sculpture is still under speculative debate. |
c. 2500 BC |
Unsolved |
| The Elusive Sasquatch |
USA |
Legend of the creature remains unproven with many theories and sightings. |
Various |
Unsolved |
| The Hobbit Bones |
Indonesia |
The existence of tiny human-like species debated in context with human evolution. |
c. 18,000 |
Unsolved |
| Palace of Versailles Secrets |
France |
Many hidden chambers and histories remain lofty and subject to speculation. |
17th Century |
Controversial |
| The Legend of the Mokele-Mbembe |
Congo River |
Reports of dinosaur-like creature continue but remain unverified and mythical. |
Various |
Unsolved |
| The Shag Harbor Incident |
Canada |
Multi-witness event of a UFO crash in 1967 remains unexplained. |
1967 |
Unsolved |
| The Haunted House of Amityville |
USA |
A story that changed horror media forever still holds debate on its factual role. |
1974 |
Unsolved |
| The Montauk Project |
USA |
Alleged secret government projects and conspiracies debated amongst theorists. |
20th Century |
Controversial |
| The Ghosts of Gettysburg |
USA |
Legends around ghost sightings at the battlefields remain folklore phenomena. |
1863 to Present |
Unsolved |
| Society of the Nth Degree |
Various |
Sworn secret societies and their esoteric purposes lead to speculative discussions. |
18th Century |
Controversial |
| The Alien Autopsy Film |
USA |
Famous footage purportedly showing an alien autopsy; authenticity still debated. |
1995 |
Controversial |
| The Mystery of the Flying Dutchman |
Atlantic Ocean |
Legend of a ghost ship doomed to sail the oceans forever; sightings stream through ages. |
17th Century |
Unsolved |
| The Lost Pharaoh's Tomb |
Egypt |
Numerous expeditions and discoveries have searched for this legendary burial site. |
Various |
Unsolved |
| The War of the Worlds Radio Broadcast |
USA |
The panic created by the fictional broadcast raises debates about public perception. |
1938 |
Controversial |
| The Fairies of Cottingley |
UK |
Photographs of fairies remain one of the most famous hoaxes in photographic history. |
1917 |
Hoax |
| The Zodiac Letters |
USA |
Cryptic letters from the Zodiac Killer inspired immense speculation and analysis; some remain unsolved. |
1960s-1970s |
Unsolved |
| The Secrets of the Giant's Causeway |
Ireland |
Interesting rock formations and myths surrounding them remain unanswered. |
Unknown |
Unsolved |
| The Underwater Stonehenge |
USA |
Mysterious underwater structure that is theorized as related to ancient cultures. |
2007 |
Unsolved |
| The Lost Gospel of Jesus' Wife |
Egypt/USA |
Fragment of a text mentioning Jesus' marital status; authenticity questioned. |
2012 |
Controversial |
| The Trans-Allegheny Lunatic Asylum |
USA |
Closed psychiatric hospital known for hauntings, history unclear. |
1800s |
Controversial |
| The Mystery of Jamiat al-Nasr |
Egypt |
Religious movement with contested origins that remain obscured in history. |
Unknown |
Unsolved |
| The Man-Made Monster of Lake Michigan |
USA |
Localized myth that a water creature lurks there; basis remains speculative. |
Unknown |
Unsolved |
| Secrets of the Bang-Bang Club |
South Africa |
The role of photographers in the conflict raises questions about ethics and representation. |
1990s |
Controversial |
| The Mystery of Ireland's Pirate Queen |
Ireland |
The life of Grace O'Malley remains a subject of historical debate and mystery. |
16th Century |
Unsolved |
| The Watcher House Mystery |
USA |
Unsolved mystery surrounding letters sent to the new owners of a home in New Jersey. |
2014 |
Unsolved |
| The Legend of Nessie |
Scotland |
The existence of the Loch Ness Monster continues to perplex scientists and enthusiasts alike. |
Various |
Unsolved |
| The Backroom of the Abbey |
England |
References to hidden rooms in religious sites fuel lore about treasures and secrets. |
Unknown |
Unsolved |
| The Treetops' Bloomer |
USA |
Symbolic piece rooted in the 1970's feminist history remains resistant to clear analysis. |
1970s |
Controversial |
| The Legend of the Skinwalker |
USA |
Stories of a shapeshifting creature and its cultural implications are debated. |
Various |
Unsolved |
| The Monk's HOAX |
USA |
The posturing of fraud by religious figures and their complex motivations remain in shadows. |
Various |
Hoax |
| The Vagrant's Crown |
Various |
Pseudonym of a mysterious punk-rock band and its origins remain obscure; await revival. |
1995 |
Unsolved |
| WETLAND of Enigma |
Various |
Ecological area with biodiversity that baffles scientists despite its ancient history. |
Unknown |
Unsolved |
| The Zodiac Significance |
Various |
The symbolism attributed to the Zodiac in various cultures remains a rich area for inquiry. |
Various |
Controversial |
| The Ghost Rosenberg Chiller |
Germany |
Mysterious unit allegedly harboring homes and channels of ghostly encounter stories. |
Unknown |
Unsolved |
| The Cowardly Lion of Oz |
USA |
Character's castle remains surrounded by questions about its existence beyond fiction. |
1900 |
Literary Enigma |
| The Parchments of Cigars |
Cuba |
Historical smoking artifacts create necessity for preservation amidst tobacco history. |
Unknown |
Controversial |
| The Stolen Presidency |
USA |
Conspiracy theories surrounding elections often draw scrutiny and charged debate. |
Various |
Controversial |
| Great Stone of the Sun |
Mexico |
Mysterious sun stone of Aztec heritage continues to fascinate researchers. |
Unknown |
Unsolved |
| The Lost Battleship of the Pacific |
USA |
Surface disappearance debated regarding time system collision amidst fictive journalism. |
1940s |
Controversial |
| The Seven Wonders of the Ancient World |
Various |
Legacies of ancient constructs provoke interest within archaeological discussions. |
Ancient |
Unsolved |
| The Secrets of the Sahara |
Egypt |
Hidden gazelles led to a mythical narrative authorities enforced secretly. |
Unknown |
Unsolved |
| The Cypher of the Gods |
South America |
Theories pursuing salvation of teaching traditions in cryptography push storytellers. |
Unknown |
Controversial |
| The Philosopher's Stone |
Various |
Theoretical discussions of transmutation catalyzed long before Cabalistic inquiries emerged. |
Middle Ages |
Controversial |
| The Unwrapping of the Wright Flyer |
USA |
A historical aviation artifact demands accurate referencing to preserve its lore. |
1903 |
Controversial |
| The Sword of Destiny |
Various |
Dialogue about this legendary sword keeps spirits of intimacy forever among scholars. |
Unknown |
Unsolved |
| The Bequest of Stone Masons |
USA |
Legends of masons and covert architectural secrets stemming from hidden workflows embraced by history. |
Unknown |
Unsolved |
| The Frosty Fingers of Frozen Mammoth |
Siberia |
Scientific curiosity about mammoths that disappeared thousands of years ago remains disputed. |
Various |
Unsolved |
| The Manuscript of Destiny |
Unknown |
A discussion around some weather-consuming tome prompts eyebrow-raising academic inquiries. |
Unknown |
Controversial |
| The Voyage of the Murray-Packer Fleet |
Australia |
Historical oceanic transport debated on various antiquities resides amid climate change influences. |
Unknown |
Controversial |
| The Outlaw's Lights |
USA |
Based around forgotten legends, these varied sources draw differing maps to context it. |
Unknown |
Unsolved |
| The Tragedy at Disneyland |
USA |
Incidents and their repercussions remain often woven into larger narratives of modern life. |
Various |
Controversial |