This paper analyzes the architectural forms and sources of the two museum works of L. I. Kahn, intending to make them, as it were, talk what the works want to talk. The series of the forms and sources analyzed here are as follows : Pantheon-Villa Rotonda/Villa Malcontenta-Villa Gar-che-Yale Art Gallery; Pantheon-School of Athen (Raphael)-Library Project (Boulee)-Kimbell Art Museum. The Yale is the transformed, that is, crushed down and piled up Pantheons, and the Kimbell is the prolonged, turned inside out and set in row, shining Pantheons.