Public Art is a concept that is in constant discussion and revision, as much as the evolution and transformation of public spaces and cities are. Monuments are repositories of memory and historical presences with the expectation of being permanent. Public interventions are created not to impose and be temporary, but as forms intended to activate discourse and discussion. Considering the concept of a museum as a public device and how they are searching for new ways of avoiding generic identities, we will deal with the concept of the personal imaginary museum. It should be considered as a point of departure to propose a personal individual construction based on the concept of defining a personal imaginary museum - concept, program, collection, events, architecture, public diffusion, etc.