This is S.R. Crown Hall on IIT's Campus (photo from Wikipedia [I wasn't rocking a wide angle lens that day... or really any day. Anyone have a grand they want to give me?]). It's considered Mies van der Rohe's masterpiece and was made a National Historic Landmark in 2001.
Which is all a tad funny to me because I get to spend the next three years of my life cooped up in this building. Here's a photo of the inside:
The upper floor is wide open studio space; home to some 400-500 undergraduate and graduate architecture students. The basement houses a wood shop, spray booth, welding equipment, computer lab complete with huge printers and plotters, and an architectural library.