• Agent 335 - One of the first U.S. spies was a woman, but who?
• Amber Hagerman - Who killed the girl who inspired the AMBER Alert program? [suggested by the-mad-hatter-13]
• Ambrose Bierce - A famous Civil War-era writer decides to leave his cushy life to go to Mexico, only to disappear forever.
• America’s Unknown Child (The Boy in the Box) - A boy’s body is found in a cardboard box in Philly in the 50s. Who was he? [suggested by wlwpanty]
• Annie Börjesson - Did this woman commit suicide or was she killed? [see also] [suggested by gaythingsingayplaces]
• Arctic Mummies - What ancient civilization left mummies in Siberia?
• Arthur’s Seat Dolls - Who made tiny coffins with dolls in them and why? [suggested by anon]
• The Axeman of New Orleans - This guy won’t stop coming after people with an axe until everybody plays jazz music.
• The Ballarat Bandit - What inspired a Canadian man to move away from his family and begin burglarizing a town near Death Valley, and how did he escape capture for so long? [suggested by eternallyitson]
• Barbara Newhall Follett - A young writer disappears. Was she murdered or just tired of her life?
• The Beaumont Children - Who took three young Australian children, and were there other victims? [suggested by anon]
• The Baychimo - When winter strikes, a ship sheds its crew–and then decides to take off without them.
• Bell Island Boom - What caused a powerful explosion on a tiny island? [suggested by kimagureprincesslinde]
• Ben McDaniel - A diver disappears, and no one can find his body. [suggested by labassistantlucas]
• Biggie Smalls - Who killed this famous rapper? [suggested by the-mad-hatter-13]
• The Black Dahlia Murder - Who murdered and maimed this woman, and is she the only victim? [suggested by several people]
• Blair Adams - What is this Canadian man running from and did it find him?
• The Bloody Benders - A family of serial killers disappears. What happened to them? [suggested by captain-ameribunny]
• Cahokia  - A gigantic ancient civilization along the Mississippi is abandoned, but why? [suggested by luminescent-wanderings]
• Caroline Mary Luard (a.k.a. The Seal Chart Murder) - Who killed this English woman and why?
• Çatalhöyük - A 9,500-year-old city in Turkey had everything going for it, and yet it was abandoned.
• Charles Manson - Many mysteries still surround the famous murder cult. [suggested by myirrelevancy]
• The Chicago Tylenol Murders - Someone laces Tylenol with poison and descends an entire city into chaos.
• Chimney Mummy - How did a teenager end up locked away in a cabin chimney?
• Christopher Marlowe - A famous writer is murdered, but why and how are unclear, and was he secretly a spy? [suggested by anon]
• Cicada 3301 - Who posted a series of mysterious puzzles, and what were their purpose? [suggested by horror-maiden]
• The Cleveland Torso Murderer (aka The Mad Butcher of Kingsbury Run) - Who killed and dismembered the poor during The Great Depression in Ohio and Pennsylvania? [suggested by the-fisher-queen]
• Conrad of Montferrat - Who assassinated this medieval king-to-be? [suggested by hacash]
• The Dancing Plague - People are stricken with the need to dance, some to their deaths.
• D.B. Cooper - This man hijacked an airplane, asked for a ransom, and successfully parachuted out. Who was he?
• Dorothy Jane Scott - Who kidnapped and killed this woman and did the killer obsessively call the family for years?
• The Dyatlov Pass Incident (tw: photo of a dead body) - Several experienced mountain hikers go into a mountain range in Russia and die of unknown causes. [see also]
• Ebola in Rome  - Did an outbreak of ebola strike ancient Athens long before it ever tormented Africa?
• Edgar Allan Poe - What killed the famous poet, and was there foul play? [suggested by anon]
• Elisa Lam - A woman, seemingly pursued by an unseen foe, disappears, only to be found inside her hotel’s water tower two weeks later.
• Erdstall - There are thousands of still-standing, ancient tunnels beneath central Europe, but no one knows what they’re for. [see also]
• Ettore Majorana - Theoretical physicist disappears under mysterious circumstances. [suggested by yachaer]
• Genghis Khan’s Tomb - One of the greatest and most successful rulers of all time, but no one can find his final resting place.
• Gloria Ramirez - Did “the toxic lady” sicken hospital staff, and, if so, with what?
• The Grimes Sisters - Who killed these two sisters in 1950s Chicago? [suggested by the-mad-hatter-13]
• Heart in a Bag - How and why did a human heart end up in a Ziploc bag in Ohio?
• Henry T. McCabe - What happened to this man and what was recorded in a bizarre phone message?
• The Hinterkaifeck Murders - Unexplained noises, missing house keys, and an entire family found dead in rural Germany.
• The Isabella Stewart Gardener Museum Theft - Some hacks in police uniforms steal a bunch of priceless art, including a Rembrandt.
• The Isdal Woman - What happened to this woman in Norway, who was she, and why were so many steps taken to conceal her identity? [suggested by whalesguts]
• Jack the Ripper - Who is the world’s most famous serial killer? [suggested by diepflaume]
• Jamison Family Deaths - How can a whole family just disappear, and who’s responsible?
• Japan’s Ghost Ship Problem - Ships from North Korea keep showing up on Japan’s shores… filled with mutilated corpses.
• The Jian Seng - A giant ship is found floating with no crew and no one knows where it came from.
• Jimmy Hoffa - A teamster with mob ties disappears, theories abound.
• Jonathan Luna (NEW!) - A lawyer is brutally killed in rural Pennsylvania. Who did it? [suggested by a friend]
• JonBenét Ramsey - Who killed the young beauty pageant star? [suggested by several people]
• Joseph Force Crater - Did this New York Judge meet an untimely end or simply walk away from his life? [suggested by anon]
• Joseph Newton Chandler III - Is this dead identity thief the Zodiac Killer? And if so, what is his real name?
• The Joyita - Crew members abandon a real unsinkable ship, but why?
• The Keddie Cabin Murders - A lakeside murder mystery. [suggested by captain-ameribunny]
• Kendrick Johnson - Was there a conspiracy to cover up this high schooler’s death? [suggested by druminor]
• Killers on Camera - Who killed defenseless men in a mysterious video, and who were the victims?
• Kyron Horman - What happened to this young boy, and do the suspicious actions of some family members have anything to do with it? [suggested by lavenderbrew]
• Lady of the Dunes - An unknown woman’s body is found on the beach. Who is she? And was she an extra on Jaws?
• Lasseter’s Reef - A massive deposit of gold may lay untapped in the Australian desert. [suggested by manga-b]
• Laura Foster - Did a confederate soldier really kill her or was it her own sister? [suggested by evilauthor]
• The Lead Masks - Two men die with mysterious lead masks on their faces. What killed them, and what were they hoping to accomplish? [suggested by neondeamon]
• The Lighthouse Mystery - Several Scottish lighthouse keepers disappear abruptly.
• The Lost Colony (on Roanoke Island) - A bunch of white people decide to try and colonize an island and it doesn’t go well.
• The Lost Dutchman Mine - In unforgiving territory lies a lost treasure just waiting to be found–if you don’t die first.
• The Lost Nazi Plunder - The nazis stole hoards of important items, including art and cultural artifacts. Where are they now? [see also]
• Madeleine McCann - What happened to this little girl on holiday? [suggested by terwki]
• Martha Philips - Who assassinated this Jewish single mother? [suggested by fuck-enterprise]
• The Mary Celeste - A sailing ship in working order is found, still at sea, without a crew.
• Mary Pinchot Meyer - Was this woman murdered for having an affair with John F. Kennedy? And was the CIA involved?
• Maura Murray - What happened to this young nursing student, who suddenly left school and her car? [suggested by deanclift]
• Max Headroom Intrusion - Who interrupted a television broadcast with their own video and why? [suggested by anon]
• Michael Rockefeller - What happened to this famous rich family member? Was he eaten by crocodiles or human beings? [suggested by anon]
• Michelle Norris - Who abducted and killed this little girl? [suggested by the-mad-hatter-13]
• Monsieur Chouchani - Who was this mysterious Jewish teacher and mentor of Elie Weisel who dressed like a vagabond?
• Natalie Wood - Did this actress drown by accident or was she killed? [suggested by the-mad-hatter-13]
• The Oakland County Child Killer - Who killed four kids and put an entire city on edge? [suggested by rebakitt3n]
• The Oakville Blobs - Gelatinous blobs of an unknown substance rain from the sky.
• The Paris Catacombs - A seemingly infinite series of tunnels filled with bones, artwork, and missing explorers. [see also]
• The Phaistos Disc - A mysterious disc, thousands of years old and covered in strange symbols, is found in Crete.
• Richard Lancelyn Green - Who caused the strange death of a Sherlock Holmes expert?
• Rongorongo - An undeciphered set of glyphs from Easter Island, possibly a completely independent language.
• The Sea Peoples - A mysterious nomadic group sailed the Mediterranean in ancient times, but who were they? [suggested by mr-w-rambles]
• The Shigir Idol (NEW!) - This mysterious Russian statue is 11,000 years old. Written on it is a code no one has yet deciphered.
• Sneha Philip - How and why did this physician disappear on 9/11? [suggested by anon]
• The Sodder Children - What happened to five of this family’s children when a fire consumed their home? And why weren’t there any bodies? [suggested by deanclift]
• The Tamam Shud Case (tw: photo of a dead body) - A body shows up on a beach in Australia, and how it got there is wrapped in mystery and lies.
• Tarrare - A man who couldn’t stop eating, anything and everything.
• The Texarkana Moonlight Murders - Who stalked “the town that dreaded sundown”? [suggested by thedarbycrash]
• The Tromp Family Trip (NEW!) - A family goes off the grid on a strange trip, and no one knows why. [suggested by druminor]
• Tupac Shakur  - Who killed this famous rapper? [suggested by the-mad-hatter-13]
• UVB-76 - A strange radio station in Russia broadcasts a constant buzz, broken only by strange readings of names and numbers.
• The Villisca Axe Murders - A killer with an axe terrorizes Iowa more than 100 years ago, and the murders remain unsolved to this day. [suggested by several people]
• The Woman in the Tree (aka Who Put Bella in the Wych Elm?) - A body turns up stuffed into a tree trunk, becomes a local rallying cry.
• The Wow! Signal - A strong radio signal from space still has researchers stunned and baffled.
• The Zodiac Killer - Who is the cryptic killer behind a rash of murders? (Other than Ted Cruz.) [suggested by several people]

Carrie Fisher, 1979