Architects comment on Kahn and his architecture. Examines six of his most significant buildings. Includes historical footage of Kahn working and speaking about his work from "Louis Kahn, architect" by Paul Faulkenberg and Hans Namuth ; "The long step forward" produced by Phillips Exeter Academy ; Eye on Art "Signature against the sky", a portrait of Louis I. Kahn, architect, produced by WCAU-TV Philadelphia; Bob Olander, director; Inez Gottlieb and Carl Charlson, producers