In June, dozens of runners raced through parts of Cedar Rapids as volunteers tossed fistfuls of brightly colored powder into the air and at participants. The powder, the main attraction of a race ...

Head in the clouds? Try entire bodies running through an orange fog. "I feel like it's all up in my nose and my eyes," said runner Farrah Agha. "I can't even see anything right now." It's a rainbow of ...