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From blood-red lakes to blacked-out islands, some of these discoveries have mystified scientists--while others have clearer explanations.

Among the most disturbing of the desperate measures taken during World War II was the recruitment of child soldiers. Here are five examples.

We all love a good villain, and the '80s had some of the best.

The phrase "break the ice" is common in modern conversation, but its journey from being a safety measure for ships to a common idiom took centuries.

If 888 keeps appearing in your life, this could be the message you've been missing.

The "100-Year-Rule" might explain why our great-grandparents' names are back in style.

Are you "mogging" the room? Here's a quick breakdown of the viral slang taking over social media.

These bright, feel-good songs tell a surprisingly darker story.

Disney and Pixar are favorites in many households, but how well do you know the movies?

All five answers to the questions below have something in common. Can you figure it out?