Featured in Head Trip
Turn any magazine into a flashlight with this optical illusion
Batteries not required.
Does the ‘world’s hardest maze’ live up to its name? Give it a shot.
It's trickier than it looks.
Your brain won’t let you see all 12 dots in this image
Our entire visual field is not made the same.
These two red dots are actually identical. Here’s how
It’s all thanks to the Ebbinghaus illusion.
These skulls look purple and orange. They are both red.
The pigments morph because of the Munker-White illusion.
This triangle doesn’t exist
But you'd be forgiven for thinking otherwise.
Try this illusion on the treadmill and running will never be the same
The treadmill works out your brain, too.
Why long car rides seem to last forever
Time is subjective.
Why the sight of blood knocks us out
Do you pass out when you get your blood drawn? You're not the only one.
Don’t worry, those weird patterns you see with your eyes closed are real
We still don’t understand why we see the particular images we do.