This rare vessel mixed luxury with labor before being converted to a museum and sometimes haunted maze.

The watery grave of an impractical idea.

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

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

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.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

Ruins of a Carnegie family mansion on Cumberland Island.

This kitschy tavern is also home to rare early editions of "Treasure Island."

A statue honoring 44 continuous years of greeting passing ships.

Dubbed the "smallest church in America," this tiny sanctuary was a local grocer's dream come true.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

The Bucyrus-Erie model 1850B electric shovel, or "Big Brutus," the largest existing electric shovel in the world.

Where the author wrote her beloved "Little House" books.

Like Stonehenge, but with boats and oodles more charm.

The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

Curious cave that stays a cool 56 degrees all year long.

European castle ruins in an American state park are actually the product of death and grief.

The world-record holder for the longest bridge stretching continuously over water.

The LSU mascot lived on the college campus in one of the most impressive tiger habitats in the country.

This largely forgotten piece of Cold War history stands hidden in the woods just north of the Mississippi Gulf Coast.

A grandiose octagonal home crowned by a large dome stands out among the antebellum mansions.