The Seattle-based design firm Lead Pencil Studio created this installation at the US-Canadian border. It's supposed to give the impression of a billboard:

the sculpture is made from small stainless steel rods that are assembled together to create the negative space of a billboard. while most billboards draw attention away from the landscape ‘non-sign II’ frames the landscape, focusing attention back on it.

Link via Dude Craft | Studio Website | Photo: Design Boom