A while back I decided to experiment with converting some of my color photos to black and white. Here are the results.
In some cases I think the black-and-white conversions actually breathed new life into the pictures. This is particularly true of the Eiffel Tower and Machu Picchu photos, in which significantly more details can now be seen than had been visible in original color shots.
You can view more featured photos at my Photo of the Day Collection.