Bob, I agree the tower and most building edges are straight. But, my eye gets pulled to the left where it seems different. Might not a little more perspective adjustment perhaps taken care of the left edge. I should talk. I have troubles with those adjustments. Regardless of my comment, I like the image a lot and really like the tonal quality and feel of the image. I want to go there..now!
John and Robert you were right. The image needed a little over a degree correction to make the closest building corner vertical and that corrected the tilt you guys saw. Thanks for the input. The posted image has been updated.