5 meters distance
This is the craziest thing I've seen in a long time. For those of you in the 21st century (e.g. blackberry owners), you'll need to look at this on a pc. You also have to get out of your seat and walk away from your computer. People may think you're crazy. But it's well worth it.)
When you look at this picture in a closer look you see its Albert Einstein .But if you stand 5 meters distance. It will become Marilyn Monroe .
Give a try. (^0^)/