History & Culture

Famous Unsolved Mysteries

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Mystery
Year
Location
Category
Known For
D.B. Cooper Hijacking
1971Pacific Northwest, USACrimeOnly unsolved US hijacking, parachuted with $200K, never found, folk hero status
Zodiac Killer
1968-1969San Francisco, USASerial killerTaunting ciphers to newspapers, 'This is the Zodiac speaking', movies, cipher partially solved 2020
Bermuda Triangle
VariousAtlantic OceanDisappearancesShips and planes vanish, Flight 19, paranormal theories, probably just bad weather
Jack the Ripper
1888London, UKSerial killerWhitechapel murders, 'Dear Boss' letters, Victorian London terror, endless suspect theories
Amelia Earhart Disappearance
1937Pacific OceanDisappearanceLost during circumnavigation attempt, Nikumaroro theory, most famous missing person, aviation pioneer
Voynich Manuscript
~1404-1438Unknown (Europe)CryptographyUndeciphered illustrated codex, unknown language, botanical drawings of unknown plants, hoax debate
Dyatlov Pass Incident
1959Ural Mountains, RussiaUnexplained deaths9 hikers died mysteriously, tent cut from inside, some had radiation, avalanche theory (2021)
Roanoke Colony
1590North Carolina, USADisappearance'CROATOAN' carved on tree, 115 colonists vanished, America's oldest unsolved mystery
Stonehenge Purpose
~3000 BCWiltshire, EnglandArchaeologicalHow and why was it built?, stones from Wales (150+ miles), solstice alignment, druids
MH370 Disappearance
2014Indian OceanAviation239 people, vanished mid-flight, fragments found years later, biggest aviation mystery of modern era
Nazca Lines
~500 BC - 500 ADPeruArchaeologicalGiant geoglyphs visible only from air, hummingbird and monkey, alien runway theories, Nazca culture
Tamam Shud Case
1948Adelaide, AustraliaUnexplained deathUnidentified man on beach, torn page from rare book, coded message, Cold War spy theories
Wow! Signal
1977Ohio, USA (Big Ear telescope)Space72-second signal from space, '6EQUJ5', never repeated, alien contact?, comet theory (debated)
The Mary Celeste
1872Atlantic OceanMaritimeShip found adrift, crew vanished, food still on table, lifeboat missing, ghost ship archetype
Kryptos Sculpture
1990CIA HQ, Virginia, USACryptography4-section encrypted sculpture at CIA, 3 of 4 sections solved, section 4 remains unsolved, Jim Sanborn

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