The Morris Arboretum of the University of Pennsylvania is located at 100 East Northwestern Avenue in the Chestnut Hill section of Philadelphia. The 92-acre horticulture display garden features a spectacular collection of mature trees in a beautiful and colorful landscape. The Arboretum includes numerous picturesque spots such as a formal rose garden, historic water features, a swan pond, and the only remaining freestanding fernery in North America. A permanent nationally award winning exhibit, Out on a Limb – a Tree Adventure adds to Morris Arboretum’s allure by transporting visitors 50 feet up into the treetops on a canopy walk that requires no climbing. Out on a Limb was awarded the prestigious Excellence in Exhibition Design by the American Association of Museums and a Gold Medal for Design Excellence from the American Institute of Architects. The Morris Arboretum’s Horticulture Center Complex has received Platinum Level LEED® Certification, the highest sustainability rating of the U.S. Green Building Council. The Morris Arboretum is listed on the National Register of Historic Places and is the official arboretum of the Commonwealth of Pennsylvania.