The Athenaeum of Philadelphia . This non-profit organization is supported by memberships. The organization takes care of the historic site museum and research collection. Use of the research library is available with no admission cost.
Public education is offered and includes sponsored lectures and exhibits.
Eastern State Penitentiary . The famous Eastern State Penitentiary was known for its revolutionary design and facilities. The cells of the penitentiary included skylights, recreational areas and more. Art exhibitions and tours of the cells are available. Various events take place in the penitentiary.