I apologize for all the alcatraz photos. I'm almost through all the decent ones that I want to share.
This image is of a prison toilet/sink is part of an art installation called "Blossom" by Ai Wei Wei. The work could be seen as symbolically offering comfort to the imprisoned, as one would send a bouquet to a hospitalized patient. http://www.for-site.org/project/ai-weiwei-alcatraz-blossom/