Mystery

Unsolved crimes, kidnappings left without resolution, and mysteries that will keep any internet sleuth puzzling all through the night.

Buyer Beware: 9 Terrifying American Murder Houses

Buyer Beware: 9 Terrifying American Murder Houses

From Amityville Horror to Jeffrey Dahmer's one-bedroom, these murder houses are home to some truly brutal murders.

A Creature Stalks These Woods…

A Creature Stalks These Woods…

Join the hunt for Connecticut's elusive Glawackus monster.

4 Killer Halloween Costume Ideas

4 Killer Halloween Costume Ideas

Think beyond "sexy ghost" with these easy costumes inspired by serial killers of eras past.

George Metesky: The Mad Bomber of New York City

George Metesky: The Mad Bomber of New York City

It was the first criminal profiling case is U.S. history ... and it all boiled down to a disgruntled Con Ed employee.

Who Put Bella in the Wych Elm?

Who Put Bella in the Wych Elm?

The victim of a brutal murder mystery lives on in grafitti messages scrawled across Europe.

Post-Mortem Photography: How the Victorians Remembered Their Dead

Grieving families soon took up the new technology to create everlasting mementos of the dearly departed.

Sherlock Holmes Visits the Museum of London

Sherlock Holmes Visits the Museum of London

A brand new exhibition dissects the creation – and enduring legacy – of the world's most famous detective.

Weekly Blotter: NYC Smoke Bomb Attack

Weekly Blotter: NYC Smoke Bomb Attack

Killer nurse nabbed in Italy, MDMA marathon man flees police, and new footage from the bizarre West Village smoke bomb attack.

Cold Case: The Somerton Man

He's one of the most famous figures in Australian history ... only because police can't figure out who he was or what happened to him.

Hands Up! 10 Heists that Netted Millions (and Billions)

Hands Up! 10 Heists that Netted Millions (and Billions)

These schemes promised millions – so long as the perpetrators could get away with it.

Welcome to The Lineup!

Welcome to The Lineup!

Your mysterious and thrilling home away from home.

When Outlaws Become Inlaws

When Outlaws Become Inlaws

Find a new claim to fame by uncovering black sheep in your family tree.

How to Spot the Psychopath in Your Office

How to Spot the Psychopath in Your Office

Better watch your back in the break room.

Get the Mole!

How CIA agent Sandra Grimes took down the traitor in her own organization.

Inside Surrey County Asylum

A Victorian psychiatrist photographs his patients with haunting results.

The Secret Code of Spies

The Secret Code of Spies

Tune in to eerie radio frequencies not meant for civilian ears.

Harry Crawford: Cross-Dressed to Kill

Harry Crawford: Cross-Dressed to Kill

Harry Crawford had it out for his wife after she discovered his big secret.

Blasts from Crime Scenes Past

Photographer Marc A. Hermann mashes vintage snaps with their current-day scenes.

William Hope: Spirit Photographer

He saw dead people – but only through a camera lens.

American Seance: The Strange Visions of the Fox Sisters

American Seance: The Strange Visions of the Fox Sisters

On a cold night in upstate New York, Kate and Margaret Fox convinced their mother they could see ghosts.