The Broken Chair is a monumental sculpture in wood by the Swiss artist Daniel Berset, constructed by the carpenter Louis Genève. It is constructed of 5.5 tons of wood and is 12 metres (39 feet) high.
It depicts a giant chair with a broken leg and stands across the street from the Palace of Nations, in Geneva. It symbolises opposition to land mines and cluster bombs, and acts as a reminder to politicians and others visiting
The Broken Chair is a project of Paul Vermeulen, co-founder and director of Handicap International Suisse. The sculpture was erected by Handicap International in front of the main entrance to the Palais des Nations in Geneva in August 1997, where it was intended to remain for three months, until the signature of the Ottawa Treaty in December 1997 in Ottawa. Following ratification by 40 countries, the Treaty became effective as an instrument of international law on 1st march 1999.
http://en.wikipedia.org/wiki/Broken_Chair