Spend a day in Philadelphia at the Academy of Natural Sciences!  This auctions is for 2 passes.  Be overwhelmed in Dinosaur Hall and mesmorized by butterflies...

Founded in 1812, the Academy of Natural Sciences is America's oldest natural history museum and is a world leader in biodiversity and environmental research. For nearly 200 years, the Academy has carried out its mission to encourage and cultivate the sciences, exploring the remarkable diversity of our natural world and sharing these discoveries with the public through innovative exhibits, publications and educational programming.