12-04-2012 - Saint Paul, Minnesota. One of the six bronze elevator doors in the lobby of St. Paul City Hall, designed by New York artist Albert Stewart and installed in 1936, that depict St. Paul history and life... © David Bacon

12-04-2012 - Saint Paul, Minnesota. One of the six bronze elevator doors in the lobby of St. Paul City Hall, designed by New York artist Albert Stewart and installed in 1936, that depict St. Paul history and life... © David Bacon

12-04-2012 - Saint Paul, Minnesota. One of the six bronze elevator doors in the lobby of St. Paul City Hall, designed by New York artist Albert Stewart and installed in 1936, that depict St. Paul history and life... © David Bacon

08-05-2008 - One Nation Under CCTV, by graffiti artist Banksy, London. © Duncan Phillips

29-06-2006 - The bronze bust of journalist, novelist, and philosopher Arthur Koestler is housed in the Department of Parapsychology at the University of Edinburgh. © Gerry McCann

29-06-2006 - The bronze bust of journalist, novelist, and philosopher Arthur Koestler is housed in the Department of Parapsychology at the University of Edinburgh. Seen here also is Dr. Caroline Watt who is senior... © Gerry McCann

29-06-2006 - The bronze bust of journalist, novelist, and philosopher Arthur Koestler is housed in the Department of Parapsychology at the University of Edinburgh. Seen here also is Dr. Caroline Watt who is senior... © Gerry McCann

23-04-2006 - A hydroelectric dam on a river near Jokkmokk in northern Sweden which has been decorated by two local Sami artists with traditional paintings. Sweden 2006 © Howard Davies

23-04-2006 - A hydroelectric dam on a river near Jokkmokk in northern Sweden which has been decorated by two local Sami artists with traditional paintings. Sweden 2006 © Howard Davies

08-02-2006 - The Weee Man, The Eden Project, Cornwall. The WEEE man, designed by Paul Bonomini, is a huge robotic figure made of scrap electrical and electronic equipment. It weighs 3.3 tonnes and stands seven met... © John Harris

08-02-2006 - The Weee Man, The Eden Project, Cornwall. The WEEE man, designed by Paul Bonomini, is a huge robotic figure made of scrap electrical and electronic equipment. It weighs 3.3 tonnes and stands seven met... © John Harris

19-06-2000 - Sculptural representation of the DNA double Helix by the artist Charles Jencks. The International Centre for Life, Newcastle Upon Tyne, England. 19/6 2000. © Mark Pinder