Dunns Bridge | Monument Moment

There's not much left of the famous 1893 Columbian Exposition held in Chicago. Just the Museum of Science and Industry.         But if you know where to look, you might find some scraps left behind from that World's Fair that drew millions of visitors to Chicago.         In this week's Monument Moment, we head to Northwest Indiana to take a closer look at a bridge that some believe has quite the circular history.