Half of a waterfall goes into the river while the other half seems to disappear.

Duluth mineral magnates built this charming art deco lodge to be their private clubhouse.

A giant granite cross remembers missionary Father Frederic Baraga, and his safe passage across an angry Lake Superior.

The watery grave of an impractical idea.

This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

This institution celebrates the happy accidents of uncommon sticktoitiveness.

When waves crash onto this section of beach, the rocks sing a song.

The only arched bridge made of stone on the entire Mississippi River.

The dishes at this restaurant by The Sioux Chef celebrate indigenous heritage.

A bronze statue on a downtown corner honors Minneapolis's favorite career gal.

When flour explodes, it's not a pretty sight.

No one's quite sure where this quirky university tradition originated.

20,000 pieces in a Frank Gehry-designed building.

Hub of Scandinavian culture in a Minneapolis deli.

Legs Inn provides Polish food, a cornucopia of Native American artwork, wood carvings, and mounted deer heads.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

These gardens recreate unique and endangered Michigan habitats.

A bypass decorated with large wooden troll carvings.

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

Software company Epic Systems has created one of the strangest and largest workplaces of all time.

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

The remains of a failed canal can be found in several towns near Lake St. Clair and is known historically as "Mason's Folly."