Mystery of 'three legged girl' picture is taking people years to solve - but can you work it out?
There are some mysteries which it seems we'll never come close to solving, no matter what technological advancements are made.
Will we ever find the Lost City of Atlantis?
Who was Jack the Ripper?
What really did happen to Shergar ?
The list goes on, and until recently, there was a new addition.
A photo of a girl kneeling on what looks suspiciously like three legs has had people baffled. Exactly what is going on in the picture?
Someone has even admitted it took them TWO YEARS to figure it out.
Can you figure it out?
The illusion has recently resurfaced on Imgur , where users have been quick to admit how tricky they found it to suss out.
"After several very confusing minutes I still don't know what is happening here," admitted one.
"I finally get. After two years I literally JUST got it," added another (which we personally think is a little too long).
"I thought he has three legs," was another person's take on the picture.
The girl is holding a brown vase whose shape and colour makes it deceptively tricky to distinguish from her legs.
It's not worth wasting two years of your life on.
While you're here, see if you can see what's wrong with this photo...
Here's the answer.
RELATED VIDEO: RARE optical illusion creates a triple sunrise
Name 'optical illusion' blows minds
Girl's picture baffles web users
Dog spotted 'driving' Mercedes on M6
Can you see anything in the red dot?