Source: http://www.flickr.com.Uploaded to Flickr by Nick Sherman and tagged with "bickhamscript". License: CC BY-NC-SA.

As I photographed this sign, I noticed several passing tourists look at me, then up at the sign, then back at me in a puzzled way. As I carried on my away, I turned back to see them all pull out their own cameras and start photographing the sign as well. In a matter of 10 seconds there were suddenly no fewer than 10 people all aiming their cameras up.

Macy's; Herald Square, Manhattan