I came across this the other day. It’s a puzzle. For all you photo nerds out there, try and find the picture hidden in the following image:
Warning! Before reading on, try and find the hidden graphic. The rest of the post contains spoilers.David Freidman came up with this. Very cool (nerd jokes are awesome).
For more takes on a similar idea, check out the work of Josh Millard, who’s taken the idea and raised it.
P.S. – from at ironicsans comes this. Gold.

Sorry dude, but ever since the days of those pictures that jump out at you as you stare at them, I haven’t examined any graphic on the web. At all.
I’ve got my eyes shut now, to protect me from you header banner.