Denver, Colorado-based agency Sukle Advertising and Design created this smart 3D billboard in 2008. According to Sukle, Denver Water has developed quite a reputation for compelling billboards. And this one fits right in! As stated by a 2012 Denver Post article, Denver Water’s imaginative campaigns have had a huge impact over the past 10 years, helping to reduce Denver residents’ water usage from 104 gallons a person per day (in 2001) right down to 85 gallons a day. Which just goes to show that effective advertising is able to send powerful messages that can even help save the planet.