The Chicago Architecture Center (CAC) was founded in 1966 as the Chicago Architecture Foundation to save the historic Glessner House. Since then, the CAC has grown to become one of the largest cultural organizations in Chicago. For more than 50 years, our educators, 450 volunteer docents and 150 guest services volunteers have shared the stories of Chicago architecture with millions of Chicagoans and visitors. The CAC serves more than 500,000 guests and audience members annually.