MMM currently comprises six museums. MMM Firmiano in Sigmundskron Castle near Bolzano is the heart of the Mountain Museum; MMM Ortles in Solda is devoted to the glaciers and the world of eternal ice; at MMM Dolomites on Monte Rite south of Cortina the focus is on rock and mountain climbing in the Dolomites; MMM Juval in castle Juval relates the myths of the mountain. MMM Ripa in Brunico Castle tells the story of the mountain peoples. In July 2015 the last MMM, MMM Corones, opened.
The Messner Mountain Museums are not conventional art or natural science museums; they have an interdisciplinary design. Each of the museums occupies a unique location, which helps relate the museum’s theme to the collections and the architecture. The geographical location, relics and works of art combine to form a whole.