1961 map of the railroads serving the Chicago metropolitan area. There is an inset that provides detail on railroad lines and facilities in the downtown core of the city.
This ambitious plan was to develop riverfront north and south of downtown, as well as west., From: Saint Louis riverfront development plan. [St. Louis, Mo.] : City Plan Commission of Saint Louis, 1967.
Map of downtown St. Louis from the 1960 Plan for Downtown St. Louis featuring the Gateway Arch, a proposed baseball stadium, an expanded Gateway Mall, and other features later added.