Abstract hypnotic black and white spiral pattern creating an optical illusion of movement. Spin blade circle zoom lines abstract background pattern. Concentric circle swirl line radius, circle ...

This optical illusion is designed to test your visual perception and observation skills. Determine the number of circles in this image in six seconds. Look closely! Try to find all the circles in the ...

"I immediately thought it was a trick question and the circles would be the letter O in the text or something like that. But neat illusion!" one person raved on a Reddit thread. Another commented ...

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slightly different shades of grey that make up an optical illusion where the contrast between the bands appears to be exaggerated as soon as they contact one ...

You lower into the squat, pause at the bottom, then drive upward to stand; these three phases are called eccentric, isometric ...

Johnsy's downstairs neighbor, Behrman, an aging artist considered a "failure in art," creates an illusion to inspire her by painting a leaf on the wall, which helps restore Johnsy's will to live.

Giving your brain a bit of a mental workout can do wonders, and there's no better gym for it than an optical illusion or brainteaser. Such puzzles aren't just a test of wits; they could ...