I was gonna post this pic, but dude has some (not unreasonable) usage conditions (I think I would've been okay posting, I'm just too lazy to email the guy) on his work.
BTW: The pic I refer to is for April 27, 2012. The pic changes daily, so, if you go at another time you might have to search for the pic.
He has some good stuff.
Daily Dose of Imagery, at topleftpixel.com.
Spend a little time in the
archives, it's worth it.