The University of Oklahoma's Institute for Quality Communities recently posted striking comparisons of American Cities before and after the years of highway building and public housing known as urban renewal. In the images, you can see the rapid change from a high density network of streets, buildings, and urban life to a large scale system of car oriented megastructures. In some photos, it is clear that neighborhoods still haven't recovered from these massive projects. Below, we've included a screenshot of Detroit before and after urban renewal. Visit the page at the Institute for Quality Comments to interact with the images and to see other cities.