I'm always impressed with how generally restrained the skyline is along Park Avenue. I'm not sure if it has something to do with the Metro-North tracks below the ground here, but practically all the buildings along the street share a similar height. It creates for a nice optical line for your eyes to follow as they all converge on the Helmsley Building downtown.
Of course, this being the part of town that it is there's nothing to be found but fancy apartments, ornate churches, and rows of trees. The same similarities that make for such an interesting skyline also make for a somewhat bland sidewalk. You have to look hard (around corners, down alleys) to find some really interesting gems. But just at a glance, everything blends together – creating one big beige blob of buildings.