Dr. Evermore's Forevertron is a giant outsider-art environment built from industrial scrap, salvaged machinery, and exuberant imagination. Its central sculpture and surrounding creatures feel like a science-fiction fairground assembled by hand, which makes it very different from Madison's museums and campus landmarks.
The site is a detour, but a memorable one for travelers who like folk art, roadside oddities, or large-scale handmade environments. Check access before going, because hours and viewing arrangements can change, and give yourself time to look at the smaller works around the main structure.