A MIND-bending optical illusion has left viewers scratching their heads as they desperately attempt to find all of the hidden faces.
Just one per cent of people can pick out every single outline of men's and women's heads in the drawing.
Many can spot just a handful of the faces concealed in the branches and trunk of a tree drawing.
But there are actually ten within the image.
The illusion - called the National Leaders Trees - is said to include the faces of Margaret Thatcher and ex-Soviet leader Mikhail Gorbachev.
Yet others claim the drawing dates back to 1880 and was created for Harper's Illustrated.
More opitcal illusions
Meanwhile, this optical illusion of a dolphin and fish could reveal just how good your eyesight really is.
Only one percent of people can reportedly find two birds hidden in the image below – but fear not as there’s a simple trick to help you.
And Hectic Nick also shared a mind-blowing optical illusion that makes you view color in black and white.
It left many of his 3.9 million followers baffled as thousands expressed their confusion.
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Elsewhere, an illusion reveals if you’re ready for challenges or you have something to tell the world.
Plus, an image of a heavily pregnant personal trainer has gone viral – but can you work out why?