We don't mention McDonald’s too much on this blog (aside from a few snide comments here and there), but a new billboard in Chicago – masterminded by Micky D’s ad agency Leo Burnett – recently got our attention. To promote McDonalds’ “Fresh” Salads, they let lettuce (yes, the real stuff) grow from the sign for three weeks to spell out “Fresh Salad.” We have to admit– a very original take on a timeless, and otherwise plain vanilla advertising medium. We’re not asking you to eat there, but anyone in Chicago that has seen this living billboard should let us know how it looks up close.

Via Azsustainability