Cape Cod Children's Museum, Mashpee

With more than 20 interactive exhibits designed to stimulate the imagination, Cape Cod Children's Museum blurs the line between education and sheer entertainment. Little ones can siege the castle, cook up pretend pancakes at the Starfish Galley diner, climb the life-size tree house, or spend hours patiently standing in line at the mini post office. The music room's piano and drums add fuel to the creative fire, while a reading wagon offers respite in the form of a story-time break. The museum also hosts birthday parties, during which groups of kids can explore the many exhibits at will.