Kahn's three principle art museums - The Yale Art Gallery, New Haven the Kimbell Museum, Fort Worth and the British Art Center, New Haven - built between 1952 and his death in 1979, exemplify the constant tension in his work between monumentality and modernization. Thus where the Yale Art Gallery comprised flexible open loft space under a long-span "diagrid" concrete floor, Kahn at Kimbell opted for a roof structure of long-span curved beams that transverse direction opened to loft space, while views down the axis of resultant vault-space -the so-called cycloid vaults - afforded the semblance of an art gallery made up of discrete rooms. In his very last museum Kahn would move away from the ultra modern idea of open flexible space to create a museum large made of self-contained gallery volumes arranged in linear sequence. The primary narrative of this film proposal is to pursue this tension between modernity and monumentality across the successive evolution of Kahn's ideal gallery paradigm.