Yes this is where to go, room CL-25 at the daley center. I'm not sure about it being free though. The cost isnt much though like 1 for $12 or 2 for $17
Lower level when you see a Starbucks after coming up the stairs from the blue line and entering the Daley center that means your on the right floor so you make a left and walk halfway down and you'll find it
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