Bike by the Federal Plaza in Chicago’s Loop on Jan. 20 for the annual celebration of cyclists who don’t let cooler temperatures stop them from pedaling to work. The Active Trans warming tent will provide riders with Caribou coffee and tea plus our traditional Eli's Cheesecake. This event commemorates coldest day in Chicago history—Jan. 20, 1985, when the official temperature at O’Hare International Airport was 27 degrees below zero. Federal Plaza is located at Adams Street and Dearborn Street in the Loop.