We've looked at all the Grand Prix and Gold Lion winners in the Film and Press competitions from last week's Cannes Lions festival. Today, we turn to the Outdoor Lions category.

The Grand Prix winner, of course, was simple and wonderful: the IBM billboards that functioned as a bench, a shelter and a ramp—reinforcing the brand message that this company makes cities smarter.

Other notable winners in this category: Evian's adult/baby portraits; the Dumb Ways to Die posters; Mayo Draftfcb's billboard in Peru that takes moisture from the air and makes drinking water from it; and of course the two U.S. gold winners—Draftfcb in Chicago for Sharpie, and Saatchi & Saatchi in Los Angeles for Toyota.

Click below to see every Grand Prix and gold winner from Outdoor this year.

Gallery: The World's Best Outdoor Ads, 2012-13