In our final video on complex urban systems, writer Elizabeth Royte offers a snapshot of the past, present and future of what happens to New Yorkers' trash once it leaves the curb.

In our third video on complex urban systems, mechanic Jim Ferrari takes us behind closed doors to reveal the inner workings of a midtown Manhattan office building.

In our second video on complex urban systems, we consider the Verrazano-Narrows Bridge as both an icon of civil engineering and a catalyst for systemic urban change.

In the first of a new video series about complex urban systems, we take a closer look at traffic signals citywide and visit the Traffic Management Center in Long Island City.