"Looking after Louis Sullivan: Photographs, Drawings and Fragments".
One of the best architectural photography exhibits I have ever seen is this newly opened Sullivan exhibit at the Art Institute of Chicago. Featuring images of Sullivan's designs by Aaron Siskind, John Szarkowski and Richard Nickel, this exhibit features many widely known and lesser known masterpieces of modern architectural photography. The exhibit also displays Sullivan's masterful drawings and many ornamental details salvaged from buildings. The museum did nothing in 2006 for the Sullivan 150 year anniversary, so this is 3 years late and low key-but superb. See it if you possibly can.
Looking After Louis Sullivan.....