Offering more than a dozen interactive exhibits, the Franklin Institute Science Museum is a favorite for both the young and young at heart. Children especially love walking through the world's largest artificial heart and learning about energy transfer via the Giant Newton's Cradle and Ball Launcher. Guests also discover the nation's second-oldest planetarium, Fels Planetarium, and on the top floor, an observatory where they can view the Sun, Moon and Jupiter. Have fun with electricity, wind, gravity, learn about medicine and health, sports and space. It's great for all ages and perfect for morning or afternoon exploration that'll keep kids talking about the place for long after you've headed home.