More than 5,000 contemporary and "historic" mustards from around the world.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

A bedazzled house and crown "jewel" of outsider artist Loy Allen Bowlin.

A museum celebrating the self-taught artist-environment builder.

A large circus museum with summer performances.

A six-story-tall golden pyramid, surrounded by a moat.