CITY OF TREES The Trees: Louisville, KY’s Olmsted-designed parks and parkways The Threat: Highway building and severe weather
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![Ian Plant Gallery: [Sponsored Gallery]](http://www.popphoto.com/files/imagecache/beg_olgallery_thumb/_images/201305/detail-of-patterns-in-rock-los-glaciares-national-park-patagonia-argentina.jpg "Ian Plant Gallery: [Sponsored Gallery]")
