The Field Museum is fee for Illinois resident for the Month of February 2020.  Details are here.  You can find other free days at that link.  Enjoy… the Field Museum is an awesome way to spend an afternoon!

The following dates are 2020 free admission days for the museum

• January 8, 15, 20 (MLK), 22, 29 (Every Wednesday)
• All of February
• NO FREE DAYS IN MARCH, APRIL, or MAY.
• June 3, 10, 17