Skip to main content
Shunka Warak'in
Cryptid
Uncertain
1886Henry, Montana, United States

Shunka Warak'in

A mysterious beast killed near Henry, Montana in 1886. The preserved creature defied classification for over a century.

The Dark Watchers of Big Sur
Cryptid
Uncertain
1700sBig Sur, California, USA

The Dark Watchers of Big Sur

Towering shadow figures observed on California's Santa Lucia Mountains for over 300 years. Witnesses report silent sentinels standing motionless against ridge lines.

The Impossible Architecture of Puma Punku
Historical
Uncertain
600Tiwanaku, La Paz, Bolivia

The Impossible Architecture of Puma Punku

Ancient Bolivian site features stone blocks cut with impossible precision. H-shaped interlocking joints suggest advanced technology predating known civilizations by thousands of years.

The Lake Champlain Serpent: America's Oldest Monster
Cryptid
Uncertain
1609Lake Champlain, Vermont/New York, USA

The Lake Champlain Serpent: America's Oldest Monster

A massive aquatic creature has been reported in Lake Champlain for over 400 years, making it America's most documented lake monster.

The Winchester Mystery House: Architecture of the Damned
Paranormal
Uncertain
1884San Jose, California, USA

The Winchester Mystery House: Architecture of the Damned

Sarah Winchester's bizarre 38-year construction project created a mansion with stairs to nowhere, doors opening into walls, and 160 rooms designed to confuse vengeful spirits.

Operation Lake Serpent: The Ogopogo Investigation Files
Cryptid
Uncertain
1872Okanagan Lake, British Columbia, Canada

Operation Lake Serpent: The Ogopogo Investigation Files

Canada's most documented lake monster. Over 200 reported sightings since 1872 in British Columbia's Okanagan Lake.

The Lost Thunderbird Photograph
Cryptid
Doubtful
1890Tombstone, Arizona, United States

The Lost Thunderbird Photograph

A famous photograph allegedly showing a giant bird crucified on a barn wall has become cryptozoology's most elusive piece of evidence.

The Bell Witch: America's Most Documented Poltergeist
Paranormal
Uncertain
1817Adams, Tennessee, United States

The Bell Witch: America's Most Documented Poltergeist

A malevolent entity terrorized the Bell family in Tennessee from 1817-1821, demonstrating intelligence, physical manifestations, and predicting future events with startling accuracy.

The Nazca Lines: Ancient Runway or Celestial Calendar?
Mystery
Uncertain
100 CENazca Desert, Peru

The Nazca Lines: Ancient Runway or Celestial Calendar?

Massive geoglyphs in Peru's desert visible only from sky. Created 2,000 years ago by vanished civilization.

The Lost Civilization: Modern Search for Atlantis
Historical
Uncertain
360 BCGlobal

The Lost Civilization: Modern Search for Atlantis

Recent scientific expeditions have identified multiple candidate locations for Plato's lost city, from the Mediterranean to Antarctica.

The Marfa Lights: Texas Desert's Century-Old Light Show
UFO
Uncertain
1883Marfa, Texas, USA

The Marfa Lights: Texas Desert's Century-Old Light Show

Mysterious glowing orbs have appeared in the Texas desert near Marfa for over 140 years, defying scientific explanation despite numerous investigations.

Operation Murder Castle: The Holmes Killings
Historical
Confirmed
1893Chicago, Illinois, United States

Operation Murder Castle: The Holmes Killings

America's first serial killer constructed an elaborate death trap disguised as a hotel during the 1893 World's Fair.

The Michigan Dogman: Werewolf Encounters in the Great Lakes
Cryptid
Uncertain
1887Wexford County, Michigan, USA

The Michigan Dogman: Werewolf Encounters in the Great Lakes

Bipedal wolf-like creature reported across Michigan for decades. Concentrated sightings every seven years.

The Jersey Devil
Cryptid
Uncertain
1735Pine Barrens, New Jersey, United States

The Jersey Devil

Legendary creature terrorizing New Jersey's Pine Barrens for over 280 years. Described as winged beast with horse head and hooves.

A Whitechapel Mystery: Jack The Ripper
Mystery
Uncertain
1888London, England, United Kingdom

A Whitechapel Mystery: Jack The Ripper

Serial killer terrorized London's East End in 1888. Five canonical victims, hundreds of suspects, zero convictions.

The Green Children of Woolpit
Historical
Uncertain
1150Woolpit, Suffolk, England

The Green Children of Woolpit

Two mysterious green-skinned children appeared in 12th century England speaking an unknown language. Only one survived to tell their otherworldly tale.

The Black Knight Satellite
UFO
Doubtful
1899-1998Earth Orbit

The Black Knight Satellite

Mysterious object allegedly orbiting Earth for 13,000 years, detected by radio operators and photographed by NASA astronauts.

The Loch Ness Monster
Cryptid
Plausible
565 ADScotland, UK

The Loch Ness Monster

Since at least 1933, witnesses around Scotland’s Loch Ness have reported a large, unknown creature in the deep, dark water. Grainy photos, sonar hits, and folklore keep the question alive: is Nessie real, or just a very successful legend?

// FREE ON iOS //

Explore the Pre-1900

Access complete evidence archives, historical analysis, and detailed timelines in the app.

4.8 stars Β· Free Β· No subscription required