@d9095c4c All of our urban areas need wild open spaces like this.  We've paved over paradise to feed the insatiable appetite of the real estate speculation sector....and we are - and will be - paying an enormous cost in human wellbeing for this. 

 @cca97760 I totally agree. Many downtown areas turn into gigantic baking ovens every summer, due to the lack of green spaces. Luckily, Pittsburgh has quite a few trees, but it could still use more.