Copper was once mined in the Aurina/Ahrntal Valley, and even today the tunnels can be visited and are used for the medicinal purpose of relieving asthma. The granary next to the church in Steinhaus has long served for the storage of food, with which the miners were partially remunerated. In 2000, it was rebuilt into a museum in order to exhibit the Enzenberg Collection comprising wood models, paintings, mine maps, documents and finds from the mines at Predoi/Prettau. In addition to a pavilion as foyer, which is made of a steel structure with stone slabs and connected with the exhibition rooms through a glass atrium, the renovation operation focused mainly on the central section of the elongated building structure. A wooden staircase, lift access, emergency stairs, and sanitary facilities were also installed here. The encased staircase represents a type of watershed between everyday life and the world of the museum.
The Kornkasten (granary) in Steinhaus is a historical building that shaped the place, and therefore needed a sensitive touch when carrying out the required interventions to turn the building into a museum, which simultaneously did not try to cover up this modern self-consciousness aspect.