12 Hot Photos From Rock ‘n’ Roll Chicago

The Windy City is one of the nation's best running cities—and these photos prove the sites are totally worth 13.1-miles.

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The high, sticky temperatures didn’t keep runners from the start line at Sunday’s Rock ‘n’ Roll Chicago Half Marathon. Check out some photos from the day, and don’t forget to register for next year while the price is only $50 for the half!