Fast-food giant McDonald’s recently opened their brand-new headquarters in the heart of Chicago, taking over Oprah’s former Harpo Studio site. The massive project came together in just 18 short months with IA Interior Architects and Studio O+A at the helm, along with the base building architect Gensler, developer Sterling Bay, and construction company McHugh. The new space brings the hamburger company back into the city with the goal of creating a single, innovative workspace that will continue leading them into the future….