Infinite City, whose name echoes Italo Calvino’s Invisible Cities, is a mapping project that takes place in three media: a book published by the University of California Press in 2010, a series of six broadside maps to be issued by the San Francisco Museum of Modern Art during the last six months of 2010, and a series of six public events at locations around the city in conjunction with those broadsides. The maps document everything from murders to treasures to queer history, labor history, urban renewal, and butterfly species in San Francisco; toxins and food history, African American and shipyard history, environmental preservation, right-wing and military sites in the Bay Area; and neighborhood and local histories within San Francisco, including the coexistence of day laborer migrants and super-localized gang kids in the Mission, Fillmore Street’s dense histories, and more. The maps are lush visual works, several of the 21 in collaboration with artists, and the book includes essays by Rebecca Solnit and various writers on subjects related to the maps.