Mystery

The "Mystery Man with 21 Faces" mocked the police ruthlessly and stocked Japan's supermarkets with cyanide-filled candy. To this day, no one knows who they were.

The woman's recorded voice has been heard all over South America, and maybe even farther.

Scientists discovered that this rare fish is still alive—without ever laying eyes on it.

It was only covered by a thin layer of grass.

In an undisclosed location.

Botanists may have some "rational" theories, but don't let science lure you into a false sense of security.

Could be a nudibranch.

Dipper and Mabel's epic summer is still keeping it weird, months after the show went off the air.

It's mouth was tied shut, though.

Big cats had been spotted in the English park for three decades—but no one knew why.

There were no broken car windows.

Forty-four years ago, a man fell out of the sky. We may never know what happened next.