You can’t miss the Diamond Jo in Northwood, Iowa—and this water tank has a lot to do with that. Standing near I-35, the tower doubles as a giant roadside sign for Diamond Jo Casino, turning an essential piece of water infrastructure into a landmark for travelers heading through northern Iowa. Finished with a metallic fluoropolymer coating, the tank has a distinctive look that helps the Diamond Jo sign stand out. It’s a pretty good example of a water tank doing more than holding water—it helps people know exactly where they are.