Ah, yes! Used a polarizer to get the sky really dark. Last Wednesday was my day off and it was sunny and warm so I went downtown and took almost 150 pictures -- including my first IR pics. It was really fun!
W.C., I was going to guess the Wrigley building before I read your post...very nice capture with good clarity and detail, from an interesting perspective. Did you use a polarizer? Good one. MFC