You bought your train ticket and booked your lodging in Chicago, traveled to Jackson Park and paid your fifty-cent admission. You’ve finally made it into the City of Wonders, the Dream City, the White City … the 1893 World’s Columbian Exposition fairgrounds. How will anyone believe you are here if you don’t purchase an official “Certificate of Visitation” to show friends back home? T. Dart Walker’s drawing “In the Rotunda of the Administration Building” depicts a busy ground [...]