 It also made an early investment in the redevelopment of Faneuil Hall into a thriving marketplace, often credited with sparking the renewal of Boston in recent decades; and helped to shape Boston's Longwood Medical Center area.The Foundation invested in the most extensive network of community health centers in the nation and made grants to a group called Save the Harbor/Save the Bay to clean up Boston Harbor.What was once one of the filthiest harbors in the world is now one of the cleanest.