It would be hard to make out the Sutro Tower in a picture from Chicago, but I did grab this one.
While tooling around San Francisco we headed down to Twin Peaks to pick up some supplies for our theme camp for Burning Man from some friends. While trying to find their place we actually got a bit lost and found ourselves at the gate for the Sutro Tower itself! We chatted with the security guard and then headed back down the road. I snapped this picture of the tower disappearing into the fog.

Update Nov 2006:
I have successfully relocated and have a much better picture of the Sutro Tower from my place. :)