In the years 2008-2020, in a city located 25 km from Warsaw, work was carried out on the creation of the Józef Piłsudski Museum in Sulejówek, which introduces Piłsudski and his role in shaping the history of Poland and Europe in the 20th century modern audiences. Among them are the inhabitants of Sulejówek, for whom Piłsudski was also a neighbor (1923-26). Hence, during the process of building a museum, questions arose about how, while designing a modern educational and museum complex, one can create methods and tools for practicing good neighborhood in this place? What is the role of a museum in building a community in a city that does not have the appropriate infrastructure for joint activities? As a result, in 2017-2020, we implemented 3 large-scale projects, which became the main axis of our activities with our neighbors. The first of them, "I stand before a Peculiar Tube" (2017-2018), was created based on the results of the first public consultations, trying to start the process of building lasting relations between the museum and its neighbors by referring to the identity of the place. The second project, "Multitude of Reality" (2018-2020), was carried out to better understand the nature of the neighborhood and the perspectives of people living closer or further to the museum. Finally, we carried out the third action and, together with our neighbors, we created the "Panorama" (2019-2020), in which the residents presented the results of our talks about the common neighborhood as part of the program of opening institutions to the public. Thanks to this, in 2020, after implementing 5 editions of public consultations and 21 participatory projects together with artists (50), activists (50), sociologists (6) and residents (1000), we developed the concept of a relational museum. On its basis, not only the first team in Poland to develop the idea of good neighborhood in a museum and space for new residents' projects, about residents and for residents was created, but also a methodology that may help other cultural institutions increase their impact on the environment and may broaden their active presence. practicing neighborhood. Therefore, now we want to make all these experiences a starting point for a discussion about how this kind of concept may affect other neighborhoods? How can it influence not only the responsibility of museums for the development of good neighborhood but also including their neighbors in this process?

The creation of relational museum is the result of multi-stage research and artistic process based on close cooperation between researchers, artists and activists. Sociologists conducted 25 social consultation groups, 41 individual interviews, 400 questionnaires, 20 workshops to deepen knowledge about the neighborhood based on quantitative and qualitative methods, while artists and activists involved residents in 21 participatory projects including creation of the Sulejówek Social Archive. The sum of experiences allowed us not only to develop a collection of good practices but also to expand it with theoretical reflection for cultural institutions interested in opening up to the environment and needs of their neighbors. The basis for popularizing the idea of expanding the social responsibility of cultural institutions for their environment and neighborly relations Therefore, during trainings and other meetings, we present what the theory of meeting and building a creative community is.