Stuttgart's Pig Museum is exactly what it sounds like: a large, eccentric collection devoted to pigs in toys, advertising, art, folklore, kitsch, and everyday design. It is housed in a former slaughterhouse complex, which gives the joke a slightly darker local edge.
This is not one of Stuttgart's heavyweight museums, but it is memorable because it does one odd thing with complete commitment. Go when you want a break from cars, palaces, and conventional galleries; the museum is strongest for travellers who enjoy folk symbolism and offbeat collections.