Take the photograph above. Roll your cursor over it (in other words, slide your mouse pointer onto the image) to form your own opinion -- when you do the rollover, you'll see the colour version, which is the image I chose to post in my Flickr photostream. But I was so undecided about that decision that I almost put both versions up. I really like this image in black-and-white, but yet I think the colour version highlights the grunge. In the end, I decided to go with the colour because of the photograph's delicious decay.
As a side note, this amazing architectural element was found right here in Toronto. Walking south on Yonge Street early one summer evening a few years ago, south of Bloor Street, camera in hand, I happened to glance up and was so surprised to see this beauty. Who knows how long she's been there? I stopped to take photographs (of course!) and the captain and our son and his girlfriend kept walking, only to realize I was no longer with them -- not the first time this has happened -- so they backtracked to where I was standing. We'd all walked up and down Yonge Street many times, yet had never noticed.
Makes you wonder what else we miss. We see but we don't always observe.