for his project the swiss artist klaus lipman was inspired by a drawing by the austrian artist max piet now called the un indeed attraction of nature. basically what i'm doing here is trying to produce a quite radical picture and i'm dealing with an underlying theme that max planck now also have both of us independently of each other and that's perception. how do we deal with our perceived nature. visitors are not allowed to touch all into the forest. and wanted to create a warning more new meant about the climate crisis it took him 6 years of planning to realize the full farce project. they work together with the swiss landscape architect in so anyhow it's nice. to see that these are the difference in the cities here so those there are the black pines you've seen they've been replanted 16 times. 299 trees were planted between the goal posts creation a mixed forest which has become quite rare in europe these days max prajna whose artworks also feature in new york's museum of modern art is the visionary who imagined a stadium forest over 40 years ago. but it is not all wild mixed forest