Since April 2009, RedEye reporter and "Going Public" columnist Tracy Swartz has traveled a different CTA bus route from start to finish each week, live tweeting and taking photos on a Blackberry camera along the way. On Dec. 22, all 139 routes were completed. Here's a unique look at Chicago from 100 of these CTA buses. See the other 39 routes here.
Tracy Swartz, RedEye
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