Architect Louis Kahn is the subject of a new exhibition opening September 8 at the Netherlands Architecture Institute (NAI) in Rotterdam. It's no secret that we here at Dwell are fans of the late architect, whose mastery of light and space, and ability to make humble materials feel grand (ie. concrete) knows few equals. Sponsored by Swarovski, the show is curated by the NAI, the Vitra Design Museum, and the University of Pennsylvania (Kahn's alma matter). Architectural models, drawings, photographs, and plans of 40 of his projects are to be featured.