Kudos to the creative Spanish minds that have brought billboards to a whole new level. This billboard for the ANAR Foundation (Aid to Children and Adolescents at Risk) is able to reach two different audiences at once.
Through the power of lenticular printing, adults and children see different messages when staring at the same billboard. The content visible to each person is based on the their vantage point. Anyone under 4 feet 3 inches will see a message targeted to children, and anyone taller will see a message tailored to adults.
Check out this video to see it in action.