Psycho Buildings, an exhibition of architectural environments designed by artists, has opened at The Hayward gallery in London. Above: Atelier Bow-Wow, Life Tunnel, 2008. Steel plate. Courtesy Atelier Bow-Wow. Photo: © Stephen White Above: Gelitin, normally, proceeding and unrestricted with without title, 2008, Mixed media. Courtesy the artists. Photo: © Stephen White Above: Rachel Whiteread,