The Augustinian Museum in Freiburg im Breisgau is home to an extensive collection of religious art, with works ranging from the Middle Ages through to the 19th century. Taking centre stage of the exhibition are the large stone sculptures and gargoyles from the Gothic Freiburg Cathedral. Frankfurt architect Christoph Mäckler was commissioned to extend the museum by remodelling the cathedral's neighbouring monastery church. The design brief was to restore the original spatial effect and to create better facilities for exhibitions. In the nave, a second set of interior walls has been added to provide structural support for the timber roof and re-divide the room. As a result, additional exhibition areas have been created in the roof truss and side galleries of the monastery church for displaying the Mediaeval treasures.