Maybe we watched too many horror movies as kids, or maybe it's just an evolutionary advantage to be wary of danger when it isn't necessarily there, but we can all remember that sudden feeling of ...

At first glance, this beautiful blue-toned illustration looks like nothing more than a decorative window opening into a surreal cosmic background. But take a closer look: which way is the window ...

Optical illusions occur naturally in different habitats and conditions across the world. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt flats ...