Sky Bridges in the City of Chicago

Sky bridges are passageways for people, or pedestrians, along a sort of maybe like second story level in a city. In calgary there is an extensive network of what have sometimes been called skyways. They're mostly on more like the second story level, and and they're open to the public. i remember as a kid, i would look at pictures of sky bridges and think, andat also watching a lot of action films back in the day, i kept thinking that there had to be like, a great action sequence where the hero has to run through a sky bridge. It's a movie that i i deeply associate with chica architecture, though i'm not quite sure why