Dictionary Johnson’s favorite feline.

These curious caverns have been home to mushrooms, gangsters, and disco.

Ever wanted to can Spam?

Manatees congregate around a power plant's discharge canal where the water is especially warm.

The magic's in the hole!

Portlandia is the second-largest copper repoussé statue in the United States.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

A fitting attraction for the corn capital of the world.

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

A museum within a museum, devoted to history's most questionable medical devices.

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

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

Tucked in the back of this amazing antique store is an important piece of medical history.

A terrific purveyor of natural history objects and curios.

The oldest operating pharmacy in the world features 800-year-old recipes.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

World's first "penitentiary," meant to be humane, drove men insane.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

Once a private collection, now the only museum of arms and armor in the Western Hemisphere - CLOSED.

Civil War Fort on an island in the Boston Harbor.

The world's largest piece of copyrighted artwork.