The rectangular museum faces two streets and only reveals its true size to the visitor pacing the full depth of the building. The vast volume of the monolithic cast concrete body is repeatedly concealed from the visitor, who instead sees reflections of the surrounding buildings in its polished surfaces. The sanding of the outermost layer of cement bares the disperse composition of the cast material, a mixture of basalt, river gravel and black cement, whose speckled design enlivens the closed face structure. Hidden inside is a windmill-shaped arrangement of equally large, yet differently proportioned, rooms that radiate around a central stairwell. At the same time, the stone building body gives the impression of being broken into four fragments, connected by a central stairway. These four rooms join together along the visitor’s path through the museum to create a radial sequence, which is extended by the division of the stairs on both floors.