Acclaimed Chicago based architectural photography firm Hedrich Blessing has recently started selling Prints on their website of some of their vanguard shots. Sold as either Classic images (1929-1979) or Contemporary (1980-present) there are many familiar shots to choose from and many more beautiful images, in particular of Chicago. Prices are reasonable ranging from $150 to $450.
As the shots are all copy right protected I can't share them in this post. If you are unfamiliar with Hedrich Blessing's work just think, Fallingwater, Mies, and more recently Aqua Tower. Now you remember those images!
Check more out here.