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Eleven of our favourite mind-bending optical illusions

by in offbeat

The below tweet from Kyle Hill got us thinking.

No, not thinking 'why does my brain hurt so much', but about some of our other favourite optical illusions. Let's get right to it.


The dinosaurs aren't actually moving


Skip to the 1:30 mark to see how it was done.


These circles aren't moving either

optical illusion

It's thought the way our eyes repeatedly scan images is behind the illusion.


Spotting a trend? This is a static image, not a gif

optical illusion


The two squares marked A and B are the same colour

optical illusion

Here's why.


Take another look at this elephant's legs

optical illusion

Sometimes our brain fills in the gaps when we expect to see something - even if it actually isn't there.


The disappearing chocolate bar

optical illusion

Here's how this one was done.


The circle in the middle is not changing size


This took first prize in this year's Illusion of the Year contest.


These roads will really mess with your head



Stare at this heart - notice anything unusual?

optical illusion

This should definitely have been an emo band album cover.


You'll never look at Pac-man the same way...



With thanks to Illusion of the Year


More: [The nine optical illusions that will make your brain melt]5

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