Philadelphia’s Please Touch Museum, now housed in venerable Memorial Hall in Fairmount Park, is the ultimate hands-on experience for kids of all ages. Here, they’re encouraged to touch, romp and explore the museum’s six interactive exhibit zones spread over 38,000 square feet. This is THE place for families on rainy and sunny days alike. Kids will never want to leave the interactive water exhibit, River Adventures (waterproof smocks and hand dryers are available), which is complete with rain clouds and waterwheels.