This is supposed to be the largest crane of it's kind in the world:
A few have been built, but the only operational one is on the offshore shipyard at my hometown Stord, Norway. It is approx 150m tall, and appeared on the Discovery channel a few years ago.
Like the drawing, the crane on Stord has a smaller crane on top to deal with maintenance. Unlike the drawing, this crane also has a construction at the bottom which elevates it further, and makes it possible to move the massive machine on a set of lines on the ground.
Here it is. Nicknamed "Ivan". Compare it with the yellow crane on the left, and you'll see the difference.
Now, enough crane talk.
"If guns don't kill people, people kill people - does that mean toasters don't toast toast, toast toast toast?"