http://abduzeedo.com/40-amazing-3d-art-pieces

Guess it's difficult or something.

Heh NICE  , and difficult , Very much so

Wish I had the time to do some sh1te like that....

Now this is Kewl! http://www.impactlab.com/2006/03/09/amazing-3d-sidewalk-art-photos/

Mary

Me likey! 
Especially the one reminiscent of Dante's Inferno.  I want my house painted like that, but my wife won't let me. 




That's quite a skill.  Glad it hasn't been leeched onto by advertisement agencies, yet. 
Seemed to pop up a year or two ago. 

Didn't know you liked that, Mary...   Did you see the one that looks like a crack in a glacier?  I forget the name of those things...

The Crevasse? Yeah pretty cool! Don't think I'd wanna fall down one LOL! My friends went up to the Alps once and the guy on the lift told them that if they ever fell in to just take off their clothes to die faster of hypothermia because no one would be able to help you anyhow. My friends were like WTF? Way to ruin a romantic moment!

Mary