Challenge Nation pioneered the urban-adventure race with a race season that includes visits to 35 cities across the country. Each scavenger hunt is personalized to the hosting city, exploring its many diverse neighborhoods with a series of clues that would test even the most skilled children's-book detective. The teams—comprised of at least two people—vie for a $300 first-place prize. The Amazing Race–style competition rewards quick wits and wise planning over physical fitness, so the best way to prepare is by doing logic puzzles while eating Funyuns and lounging in a La-Z-Boy. The top 25 teams qualify, the top five receiving free entry, to compete in the national championship, which rewards winning teams with a $5,000 cash prize.