This might look like a simple red dot at first glance, but what's taking the internet by a storm is what's INSIDE the dot.
Take a close look at the circle and see what you can see.
If it's just a blank red, you might find yourself disappointed - but you can scroll down to see the reveal.
Because plenty of people are looking at it and seeing something else.
Jack O'Neil's original puzzle on Playbuzz is a bit of an eye test, with commenters having varying degrees of success.
Carolyn Koval wrote: "Yes I saw it all - when I removed my glasses."
User Matt Wil explained: "It's a test to see how well your eyes differentiate color."
Can you see anything inside the dot?