A new optical illusion is going viral online, forcing people to put on their thinking caps to solve the puzzle. It shows three straight horizontal lines stacked vertically and asks a basic question: ...

Credit: ForsakenAd2845 via Reddit When the worlds of art and optical illusions combine, beautifully brain-boggling delights ...

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Add Yahoo as a preferred source to see more of our stories on Google. Take a minute to glance at some odd, confusing photos. There are tons of them out there waiting to be discovered. Optical ...

The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception. By Katrina Miller Take a look at this video of a waiting ...

Just in time for Halloween — how you view this spooky optical illusion will determine if you’re smart, optimistic, or intuitive. Shared by Your Tango last year and updated in June, the black-and-white ...

Optical illusions offer a fun glimpse into personality. What you see first in a picture can reveal a core positive trait.

Optical illusions are great fun, and they fool virtually everyone. But have you ever wondered if you could train yourself to unsee these illusions? Our latest research suggests that you can. Optical ...

How optical illusions work has been long-debated among scientists and philosophers, who wonder whether these illusions stem from neural processing in the eye or involve higher-level cognitive ...