At the Berlinische Galerie, American artist Edward Kienholz’s The Art Show – a large-scale installation of visitors viewing an exhibition, with ventilators where their mouths should be – is rarely on view simply because its scope requires an entire gallery within the museum. According to museum director Thomas Köhler, Kienholz’s work, an example of Assemblage art, also takes a great deal of energy and time to assemble properly. Portions of the piece – a figure’s vintage spectacles, for example – also often need to be replaced, sending the restoration team to flea markets.