A local prank turned town icon.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

A toxic ghost town sitting atop a massive coal fire.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

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

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

The famed architect designed this Minnesota gas station of the future with a lookout tower.

17,400 lbs., 12 feet in diameter, and 29 years in the making.

An amazing collection of sculptures and art.

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

Explore the History & Technology of Electronic Communication

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

Secret hideaway for an alternative beach experience.

A palatial art deco restroom.

1887 era Russian Orthodox church in Minneapolis.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

A Perpetually Under construction Park.

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

This old residential building was once the largest flour mill in the world.

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

One of the world's premier laboratories for hydraulic engineering research takes full advantage of the water's power.

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