Cambridge Public Library
United States historic place
The Cambridge Public Library (CPL) in Cambridge, Massachusetts, is a public library that consists of a unified city-wide system maintaining: a main branch, of notable aesthetic architectural value, plus a further six localized branches sited throughout the city. Having evolved from the Cambridge Athenaeum, the main library branch was built at its present site in 1888. The main library most recently underwent renovation, and a modern building addition significantly expanded the overall branch in 2009, which greatly increased the branch's area, more than tripling its square footage. The library is also on the United States National Register of Historic Places.