For Whom.. 2008
This work by Kris Martin hangs over the entrance desk inside the Sammlung Boros Bunker Gallery, swinging continuously, but silently as it has had its clapper removed. I found it most creepy. Having been to Holocaust Museum, and then learning all about the Berlin Wall and the communist regime, and people being silenced, surpressed and terminated, seeing this bell tolling silently felt very disturbing.
The photo is from http://www.sammlung-boros.de/