"Psycho Buildings" exhibition in London

A visitor looks inside an installation entitled "Life Tunnel" by Japanese architects Atelier Bow-Bow, on display at the "Psycho Buildings" exhibition at the Hayward Gallery in London, Tuesday, May 27, 2008. The exhibition celebrating the Hayward Gallery's 40th anniversary season brings together the work of artists from around the world who create habitat-like structures and architectural spaces that are mental and perceptual spaces a much as physical ones. (Xinhua Photo)

Visitors row on an artificial lake, an installation by the Austrian collective "Gelitin", on display at the "Psycho Buildings" exhibition at the Hayward Gallery in London, Tuesday, May 27, 2008. The exhibition celebrating the Hayward Gallery's 40th anniversary season brings together the work of artists from around the world who create habitat-like structures and architectural spaces that are mental and perceptual spaces, as much as physical ones. (Xinhua/Reuters Photo)