Back to the past - black/white camera

I'm just back from a few days visiting Barcelona and a very nice project Can Nova. In Barcelona I was playing a bit with my camera (and selecting some different colors) and you get immediately an effect of going back into the past. When you look at the pictures, you can imagine that you travelled back in time (to the thirties or forties) and be a passer-by.

And sometimes you get a special effect - especially the pigeon in the front looks quite bizar. So maybe you can do some time-travels yourself when you edit some of your holiday pictures.