The name of this establishment has changed--it is no longer the Mt. Horeb Mustard Museum, but is now the National Mustard Museum, since they have moved out of Mt. Horeb and into Middleton, WI.   A lot more space in the new location (yes, I've been there more than once), the usual goofy stuff (mustard documentary, faux press releases, old advertising and mustard jars from around the world), and really nice people make this a great place to stop.\n\nTry their maple peppercorn mustard--it's delicious on brats.