Deep dives into the world's most compelling unsolved mysteries. Every article is researched, sourced, and written to help you form your own conclusions.
Over 10,000 sightings, centuries of Indigenous legends, and one iconic film. Explore the evidence, theories, and science behind the Bigfoot phenomenon.
Discover the Bimini Road, a mysterious half-mile underwater limestone formation near the Bahamas. Explore the theories, science, and Edgar Cayce connection.
Who is Cicada 3301? Explore the cryptographic puzzles that stumped the internet from 2012 to 2014, the Liber Primus, and the theories about who's behind it all.
In July 1518, a woman in Strasbourg began dancing in the street and couldn't stop. Within weeks, 400 people had joined her. Some danced until they collapsed or died.
In 2013, Elisa Lam was found in a water tank atop the Cecil Hotel in LA. The elevator surveillance footage went viral. Here's what really happened.
Fast radio bursts release as much energy in a millisecond as the Sun does in three days. Discovered in 2007, their origins involve magnetars, but the full picture is still emerging.
In December 1900, three lighthouse keepers disappeared from the remote Flannan Isles off Scotland. The door was ajar, a meal sat untouched, and the men were simply gone.
In October 1978, a 20-year-old Australian pilot radioed that an unidentified craft was hovering above his Cessna over Bass Strait. Then his transmission dissolved into metallic scraping sounds. He was never seen again.
What is Havana Syndrome? Explore the strange symptoms, competing theories, GRU links, and a secret Pentagon device in this deep dive into anomalous health incidents.
In 1922, six people were murdered on a remote Bavarian farm. The killer stayed for days. Footprints led in but never out. The case remains unsolved.
In 1966, two Brazilian men were found dead on a hillside wearing suits and lead eye masks. A cryptic note said to 'ingest capsules' and 'await signal.' The case is still unsolved.
In 2017, the first interstellar object passed through our solar system. Its strange acceleration and shape sparked a fierce debate: natural phenomenon or alien technology?
Since the 1950s, hundreds of dogs have leapt from Overtoun Bridge near Dumbarton, Scotland. At least 50 have died. Nobody's fully explained why.
A distress call. A crew found dead with faces frozen in terror. A ship that exploded and sank before anyone could investigate. The story of the SS Ourang Medan is one of the sea's most chilling mysteries, but did any of it actually happen?
Tabby's Star dims by up to 22% at irregular intervals. Was it an alien megastructure? Dust? A swallowed planet? Here's what we know about KIC 8462852.
In 1948, an unidentified man was found dead on an Australian beach with a torn scrap reading 'Tamam Shud.' Explore the code, the theories, and the 2022 DNA breakthrough.
Since the early 1990s, residents of Taos, NM have reported a persistent low-frequency hum with no known source. Here's what science has found so far.
In 1977, a radio telescope detected a powerful 72-second signal from deep space. It's never repeated. Explore the theories behind the Wow! Signal and why it still matters.
Discovered in 1987 off Japan's southernmost island, the Yonaguni Monument features what appear to be carved steps, terraces, and pillars beneath the sea. Is it a sunken city or a trick of geology?
Amelia Earhart vanished over the Pacific Ocean in 1937 during her attempt to fly around the world. Nearly 90 years later, her fate remains aviation's greatest unsolved mystery.
Angkor Wat is the largest religious monument ever built, but the city around it was even more astonishing. LiDAR scans reveal a sprawling metropolis that collapsed under climate change.
What really goes on at Area 51? From Cold War spy planes to UFO conspiracy theories, here's the declassified history of the world's most famous secret base.
In 2011, treasure hunters found a 60-meter circular object 90 meters deep in the Baltic Sea. Was it a crashed UFO, glacial deposit, or something else entirely?
Between 1989 and 1990, thousands of Belgians reported silent triangular craft in the sky. The military scrambled F-16s, confirmed radar contacts, and still couldn't explain what happened.
Over 75 ships and aircraft have vanished in the Bermuda Triangle since 1900. From Flight 19 to the USS Cyclops, here's what we know and what we don't.
Between 1923 and 1951, a 100-pound Latvian immigrant single-handedly carved and moved over 1,100 tons of coral limestone in South Florida. His methods remain disputed to this day.
In 1971, a man called Dan Cooper hijacked a Boeing 727, collected $200,000 in ransom, and parachuted into the night. He's never been found.
Nine experienced hikers died under bizarre circumstances in the Ural Mountains in 1959. After decades of investigation, the Dyatlov Pass incident remains one of history's most perplexing mysteries.
Nearly 900 massive stone statues stand on one of Earth's most remote islands. How the Rapa Nui people carved and moved them remains one of archaeology's greatest puzzles.
Erected anonymously in 1980 with ten guidelines for humanity in eight languages, the Georgia Guidestones stood for 42 years before being bombed in 2022. Who built them, and why?
Built around 9500 BCE by hunter-gatherers who hadn't invented farming, pottery, or metal tools, Göbekli Tepe is the world's oldest known monumental structure. It shouldn't exist.
Since the 1930s, mysterious lights have appeared over a remote Norwegian valley. Scientists have studied them for decades, captured them on camera, and still don't have a complete answer.
In 1888, at least five women were murdered in London's Whitechapel district by an unidentified killer. Over 100 suspects have been proposed, but Jack the Ripper's identity remains history's most famous unsolved case.
On December 9, 1965, a fireball streaked across six US states before something crashed in the woods near Kecksburg, Pennsylvania. The military arrived, sealed the area, and said they found nothing.
With over 1,100 sightings since 1933, the Loch Ness Monster remains one of the world's greatest mysteries. From the surgeon's photo hoax to eDNA studies, here's what we actually know.
Perched 7,970 feet in the Andes, Machu Picchu was abandoned within a century of being built. Its exact purpose, from royal estate to sacred observatory, is still debated.
On March 8, 2014, Flight MH370 disappeared with 239 people aboard. Over a decade later, we still don't know what happened. Here's everything we do know.
Since 1883, mysterious glowing orbs have appeared near Marfa, Texas. Are they car headlights, atmospheric mirages, or something science hasn't figured out yet?
In 1872, the Mary Celeste was found drifting in the Atlantic with no crew, warm food, and 1,701 barrels of cargo intact. What happened to the 10 people aboard?
For 13 months in 1966-67, residents of Point Pleasant, West Virginia reported a winged creature with glowing red eyes. Then the Silver Bridge collapsed, killing 46 people. Coincidence?
Etched into Peru's desert over 2,000 years ago, the Nazca Lines depict giant animals and shapes only visible from the air. Who made them, and why?
Since 1795, treasure hunters have spent millions digging into Oak Island's Money Pit. From pirate gold to the Holy Grail, here's what they've found and haven't.
On March 13, 1997, thousands of witnesses across Arizona reported a massive V-shaped craft and mysterious lights. The Phoenix Lights remain one of the most witnessed UFO events in history.
At 12,800 feet in the Bolivian Andes, Puma Punku's stone blocks were cut with a precision that baffles engineers. How did a pre-Columbian civilization achieve this without metal tools?
Over 2 million stone blocks, precision engineering, and zero blueprints. The Great Pyramid of Giza remains one of history's greatest unsolved construction puzzles.
In December 1980, US Air Force personnel reported strange lights and a craft in Suffolk's Rendlesham Forest. With military witnesses and physical evidence, it's the UK's most famous UFO case.
In July 1947, the US military announced it recovered a 'flying disc' near Roswell, New Mexico, then retracted the claim within 24 hours. Here's what actually happened.
For 30 years, Utah's Skinwalker Ranch has produced reports of UFOs, cattle mutilations, and glowing orbs. Here's what we know and what science hasn't proven.
Built over 1,000 years on Salisbury Plain, Stonehenge's purpose and construction still baffle researchers. From solar calendars to healing shrines, here's what we know.
Teotihuacan was the largest city in the Americas for centuries. It had apartment complexes, massive pyramids, and a population of 125,000. We still don't know who built it or why it collapsed.
In November 2004, Navy pilots from the USS Nimitz encountered a white, oblong object off the coast of San Diego that outmaneuvered their F/A-18 Super Hornets. The Pentagon confirmed the encounter is real.
In 1908, a mysterious explosion flattened 800 square miles of Siberian forest. No crater, no fragments. Here's what we know about the Tunguska event.
A 600-year-old manuscript written in an unknown script with bizarre illustrations has defeated every codebreaker who's tried. Here's what we know about the Voynich manuscript.
Between 1968 and 1969, the Zodiac Killer murdered five people in Northern California and taunted police with coded letters. Over 50 years later, he's never been identified.
In 1590, 115 English colonists vanished from Roanoke Island without a trace, leaving only the word 'CROATOAN' carved into a post. What happened to them remains America's oldest unsolved mystery.