Biosphere Montreal, Cédric Thévenet, CC BY-SA 3.0
Studio Formafantasma, Autarchy, 2010,  Photo: Studio Formafantasma,  Courtesy the artists
Des-in, Reifensofa, Unikat, 1974
mischer‘traxler studio, the idea of a tree, 2008
Tea Mäkipää und Halldór Úlarfsson, Atlantis, 2007-14, Foto: Purnu Art Center (Finnland)