Basel, Switzerland-based art collector and curator Klaus Littmann will plant 299 trees in the Wörthersee Stadium in the Austrian city of Klagenfurt as a statement on climate change. For Forest: The Unending Attraction of Nature, a temporary intervention scheduled to open on September 9, will be Austria’s largest public art installation to date.It's a cool statement, but worth it just for creating the experience. I'd definitely go to a stadium to look at some trees.