Thing 6

I had so much fun checking out Picasa's web albums. It reminded me a lot of Photobucket's set-up but I found it to be very uder-friendly. I found this image. It took me a minute to figure it out, but what an amazing shot it is! (Although when you look at where it was taken, you get very different symbolism out of it.)

http://picasaweb.google.com/p.latkoczy/AuschwitzIAAuschwitzIIBirkenau?feat=featured#5301216478394900066

Know what it is?