Richard Serra, The Matter of Time, sculpture at the en-Guggenheim Museum Bilbao

Richard Serra, The Matter of Time, sculpture at the en-Guggenheim Museum Bilbao, a photo by www.admsp.org on Flickr.

Richard Serra's 257m long Te Tuhirangi Contour. Commissioned by AlanGibbs for his property (known as The Farm) on the Kaipara.

Richard Serra's 257m long Te Tuhirangi Contour. Commissioned by Alan Gibbs for his property (known as The Farm) on the Kaipara., a photo by www.admsp.org on Flickr.