The idea that architecture is a form of nature has become a maxim that the firm Junya Ishigami + Associates faithfully follows in its work, an oeuvre now enriched by the Botanical Garden Art Biotop: Water Garden in Tochigi, Japan. The singularity of this project lies in all the recycling it involves: on the one hand, Ishigami has reused hundreds of trees that were supposed to be felled altogether, and on the other, he understood that taking advantage of an existing irrigation system would be the best way to create the watery soil on which a new kind of natural environment that has much to do with architecture would be able to thrive.