The article elaborates on the accomplishments of those centered round a magazine “Borussia. Culture. History. Literature” which, while following a constructivist vision of history, seeks an answer to a question about a role of the heritage of East Prussia and Germany in contemporary Poland. Thus, a challenge has been taken to not only examine the region’s past, but also to examine the creation of contemporary civil society which is aware of what was the past of the land on which they live. Elements of multicultural image of East Prussia emerging from “Borussia” articles, create a metaphoric “Atlantis of the North” — idealized multicultural land, dominated by the spirit of tolerance. Such an image, together with the idea of “open regionalism” comprises a preferred image of contemporary regional identity.