‘Chicago Med’ actor Nick Gehlfuss tests his Chicago History

Data pix.

"Chicago Med" actor Nick Gehlfuss faced our very own Pat Tomasulo to see who best knew their Chicago history.

Gehlfuss stars as Dr. Will Halstead on the NBC drama, which returns tonight at 7 p.m. for it's fifth season.

Notice: you are using an outdated browser. Microsoft does not recommend using IE as your default browser. Some features on this website, like video and images, might not work properly. For the best experience, please upgrade your browser.