River City I, Chicago, Illinois, Model

Bertrand Goldberg’s first, unrealized plan for River City was a vast 230-acre development designed to attract new residents to then-industrial South Loop. His high-density plan centered on a new model of high-rise living organized not by individual towers but as horizontal groupings of residential floors and “community-service” levels spanning three linked towers. Each of these horizontal clusters of housing and services would become an independent community, with opportunities for socializing and running errands at small shops, library, post office, health center, and daycare—all on the 54th floor.

Credit: The Archive of Bertrand Goldberg, gifted by his children through his estate