This sprawling mini-golf empire is an impressive testament to a disappearing attraction.

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

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 bypass decorated with large wooden troll carvings.

This cave holds a surprisingly colorful variety of geological oddities.

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

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 secret gem of a toy store houses a rideable carousel populated with fantasy animals.

A warehouse for all of your architectural details.

The oldest remaining frame residence in Minneapolis.

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

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

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

World's largest carved onyx figure stands as a tribute to enduring peace.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.