DO YOU SEE IT NOW?
i think i just wasted about half an hour of my life staring at this.
It switches sides when you look at it using the left and right sides of your brain.
my brain hurts
X-Men 50th Anniversary poster in all its glory!
Art by Walt Simonson, David Lopez, Art Adams, Nick Bradshaw, Neal Adams, Phil Noto, Chris Bachalo, Whilce Portacio, Salvador Larroca, Stuart Immonen, Joe Madureira, and Clay Mann