Valentine's Day is all about the hearts: heart-shaped chocolates, cards, balloons and even pizza. But the heart hasn't always ...

Like the Ouroboros—the mythical serpent that bites its own tail to form a circle with no beginning or end, and served as a ...

Spend a night sleeping under the desert stars, on a sailboat, or inside the Trojan Horse at this whimsical Belgian hotel that feels straight from a fairytale.

There's a lot more to Earth than meets the eye. Far from being just a roundish rock barreling through space, our planet is composed of several layers held together by intense forces of gravity.

Potential patches of Earth's ancient crust, sometimes called "sunken worlds," may have just been discovered deep within the mantle, thanks to a new way of mapping the inside of our planet.