Children will work together in groups to build parts of a city using LEGO® bricks. Each group creation will be combined to make one exciting LEGO® city. For ages 6 to 13. Kids under age 11 must be accompanied by an adult caregiver. How to Attend Register by 4 p.m. the day before the event. Chicago Public Library cannot collect personal information online from kids 0 to 13. A parent or gu