Mystery

Madeleine Smith had a rich fiancé, a secret lover, and one hell of a hot chocolate recipe. We recreate her cup of cocoa ... without the lethal ingredient.

A box of their unmarked photographs jumpstarted the Internet's most heartwarming manhunt.

This grisly tale of survival will have you grabbing an extra bag of granola next time you hit the trail.

For years, a mysterious man appeared at Poe's grave in the dead of night. Who is he and will he ever return?

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

Join the hunt for Connecticut's elusive Glawackus monster.

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

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

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

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

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

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

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.

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

Your mysterious and thrilling home away from home.

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

Better watch your back in the break room.

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

A Victorian psychiatrist photographs his patients with haunting results.

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