The Morris Arboretum at the University of Pennsylvania is host to a new modern tree house resting 50 feet above the forest floor. Tree Adventure is a sprawling, 450′ walkway suspended in the canopy that gives its visitors a birds-eye view of the forest below. The design, created by Metcalfe Architecture and Design, features a modern shelter at its center, a man-made bird’s nest, long, angular walkways and a canopy net where visitors can relax above the forest. The design was given the “Best of Philly” award for architecture in 2010, as a public space that promotes community and education while adopting modern design standards. We wouldn’t mind a nap on that net high in this Pennsylvania forest. Then again, we’ve made no secrets about our passion for modern treehouse design. [metcalfe ad via archdaily, photos by paul warhol] View in gallery View in gallery View in gallery