In September 2011, Barney Kulok was granted permission to create photographs at the construction site of Louis I. Kahn's Four Freedoms Park in New York City, commissioned in 1970 as a memorial to Franklin D. Roosevelt. The last design Kahn completed before his untimely death in 1974, Four Freedoms Park remained an unrealized work by one of the masters of twentieth-century architecture. Forty years after the original commission, it was finally completed in 2012. Unbuilt is at once a historical record and a multilayered visual investigation of form and the subtleties of texture--elements that were of fundamental importance to Kahn's approach . As architect Steven Holl writes, "Kulok's photographs free the subject matter from a literal interpretation of the site. They stand as 'Equivalents' to the words about material, light and shadow that Louis Kahn often spoke.