Museums help visitors appreciate the benefits of modern living, including prescription glasses, heated toilet seats, and dinosaurs that only exist in skeleton form. Savor scientific discoveries with today's Groupon: for $12, you get admission for two to the Da Vinci Science Center (up to a $23.90 value). Toddlers up to age 3 get in for free, and regular admission for children and seniors is $8.95.

The Da Vinci Science Center enlightens minds with more than 200 hands-on exhibits plus a slew of activities related to the Summer of Manufacturing program. Built around the How People Make Things exhibit, this summer program covers the history of industrial ingenuity in eastern Pennsylvania and western New Jersey, letting young exhibit explorers witness the manufacturing processes behind crayons, golf carts, and baseball gloves. Meanwhile, the center's 10,000-square-foot exhibit floor houses a host of other mind-enlarging attractions. What's Alive? explores the characteristics of living things, from bacteria to spiders to human beings. Watt's Up? highlights the five senses and features a 72-foot maze-like tunnel where children can discover how their bodies adapt to complete darkness by growing a sixth sense which allows them to destroy bogeymen telekinetically.