The grand staircase featured in this month's At-a-Glance Photo Contest is located at the Auditorium Building on Roosevelt University's Chicago campus.
The National Historic Landmarks Program considers the Auditorium Building to be "among the most important buildings in the history of modern architecture." Learn more about the history of the building at Roosevelt University's website, where you'll find a collection of vintage postcards depicting the building in its earliest years.
Congratulations to all who responded with the correct answer to this month's quiz. The winner's name can be found at the STC Chicago website.