How was Cincinnati zoned in 1925? What about Bloomington, Indiana in 1927? This remarkable trove of maps from the University of Chicago Library's Map Collection brings together several dozen planning maps of Midwestern cities in the 1920s and 1930s for those with an interest in all things urban. The collection also includes a census-block map of Detroit, a fascinating parking-lot map of central Detroit, and a map of Milwaukee's Parklawn, which was one of the country's first housing projects. Professors of urban planning, history, architecture, and design will find these maps quite delightful and they are a wonderful addition to existing digital collections.