T. Renner, "PVC and Sky #1," 2009, digital photograph.
Driving by Washington University's campus a few weeks ago I noticed a group of interesting structures on the corner of Skinker and Forsyth. Unfortunately, I didn't get around to taking any photos until after the leaves had lost their beautiful read and gold colors. Still, I think this photo works well in black and white.
It turns out the structures are the work of students in Arny Nadler's 3D design class at Washington University.