Fornföreningen Fibula on the Aland Islands contacts the author because its members want to create a museum.The purpose of this two years master’s thesis in Archive, Library and Museum studies is to shed light on what a museum really is. The research question I have answered is “what is a museum and is this what Fibula really wants in their reconstructed Viking village?”. Based on interview material, ethnographic field studies, relevant research in the subject and documents from Fibula, I have answered the research question. My theory is grounded and the methods are qualitative.The result of the analysis is that a museum is a non-profit, permanent institution mediating knowledge. It is a heritage value protector and a museum is obligated to take care of and conserve its museum objects and to safeguard the heritage professionally. A museum has to respect and understand the heritage it manages. Research anddocumentation of the museum collections is the key to maintain professionalism. A museum is always active and it can be a participating museum where visitors are included in the museums democratic processes. Fibula is a heritage entrepreneur and the association will find it difficult to manage a museum professionally due to that reason. Fibulas members have an existing sense of place for the Viking village in Kvarnbo and its surroundings. To bring attention to this fact in the future a museum, a visitor center, a walking trail or a development of the Viking village into a living history museum or an (archaeological) open air museum could be relevant. At the moment it seems doubtful however that Fibula and its members got the time, the commitment, the resources and the knowledge it takes to run a museum. Perhaps a museum can be created in the future if respect and understanding of heritage value will come to pass. Entrepreneurship and the sense of place alone don’t lead all the way to a museum.