National Air Races
The National Air Races began in 1920, championed by Joseph Pulitzer as a way to promote aviation in a post-World War I economy. Various cities hosted the event over the next few years, and the races were brought to Cleveland in 1929; more than 300,000 spectators attended the 10-day affair, and the event made a profit of $90,000. (The only other venue to turn a profit—a whopping $485—was Spokane, Washington, in 1927.) Read more about Cleveland's long history with the National Air Races here. An airplane flies up and out of this 1932 poster, while other aircraft fly around racing pylons in the background.