An optical illusion is a fascinating visual trick that plays with the way our brain and eyes work together. Sometimes, what we “see” isn't really what's “there,” and that's what makes optical ...

Can you find that hidden animal in 5 seconds? You will be among the most intelligent and sharpest minds if you can do so. Attempt now! Spot 3 Differences in Just 17 Seconds.

While these theories are complex and rest on much more than the seemingly invisible pickle jar, this example highlights how the hidden layers of perception can be missed. An accident in Italy can ...