4840 Kennett Pike
Nothing is better than being locked up all night at the Delaware Museum of Natural History. From 6 p.m. to 8 a.m., participants are free to roam among the dead (well, prehistoric) horses, skeletons and bizarre creatures from the deep in the Discovery Room. Sleep in any one of three main galleries, then wake to a light breakfast. There’s just one catch: You have to be a Girl Scout or Boy Scout. The museum will, however, offer overnights to non-scouts this fall.