Choose from Optical Illusion Spiral stock illustrations from iStock. Find high-quality royalty-free vector images that you won't find anywhere else. Video Back Videos home Signature collection ...

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 ...

"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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It’s the most magical A Longwood Christmas ever as the botanical showplace debuts its long-awaited Longwood Reimagined ...

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 ...

Some visual scientists think this is due to fixation jitter: eye movements that give the illusion that objects near what you’re focusing on are moving. Which of the two circles in the centre is ...

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.