Philippe Barthelemy and Sylvia Grino set up their practice together in 1987. Eric Carlson is a Paris-based American architect who works as an occasional consultant to the Barthelemy Grino practice. They discuss their recent projects dealing with the problem of exhibiting modern art: the Gallery Xippas hidden in a courtyard in the dense Marais district of Paris, and the Korpulfsstadir Museum housed in a monumental dairy farm isolated on the tundra outside of Reykjavik. In spite of their contrasting locations the two spaces demonstrate a preoccupation with such concerns as the role of architecture as both a backdrop to exhibits and an attraction in itself; the arguments for and against natural lighting; and the constraints imposed by existing structures. NB: Drawings that illustrate the lecture are sometimes unclear.