Today is the Chicago Marathon, and the weather is perfect—for watching it. The runners hope the temperature stays below 21°C, but it's creeping up.
No matter: here are the lead runners passing through Lincoln Park about an hour and a half ago:
Even more fun is when the great mass of runners stampede through, like these folks running a four-hour pace:
Let's hope it stays cool for them.
Update, 9:40 am: Defending champion Sammy Wajiru just won the men's race.