Oxford has some excellent (free) museums, among them the University Museum of Natural History, famous for its dinosaur and dodo skeletons, and the attached (and incomparable) Pitt Rivers Museum, an Aladdin’s cave spread over three floors and crammed with such things as voodoo dolls and shrunken heads from the Caribbean and Pacific. Visitors are given torches (flashlights) to ‘explore’ the lower Court Gallery and are allowed to open all the drawers. Great stuff.