ADIOS LA by Jon Jackson.

I saw this site a couple days ago, and all I've got to say is that those billboards are beautiful and the typography is rad. And he has also made out of this billboards, awesome iphone wallpapers.

From the website:

"Adios LA is a visual goodbye to the city Jon Jackson has called home for years as the artist heads east making New York his new home. Not wanting to string LA along, he has decided to firmly break it off through a graphic billboard series posted on the famous streets of his first love."