An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

This museum located in the "Corn Cob Pipe Capital of the World," chronicles the history of cob pipe.

This art deco masterpiece was once a miracle spring mecca but is now simply a government office building.

A subterranean haunt where wine and homemade biscottis are always on the menu.

An abandoned concrete jungle surrounded by a lush park.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

This mosaic-covered bar is brimming with curated curios.

Giant granite rocks standing end-to-end like a train of circus elephants.

Erosion and time have created a naturally-formed water park.

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

A unique blue and yellow phone booth in America's "Little Sweden."

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

The largest collection of political commercials in the world.

Dad jokes and wordplay abound in this comic fake cemetery.

Collection maintained by the legendary designer.

Standing at 21-feet tall, this space cowboy adds to the legacy of Route 66's muffler men.

Twenty-year effort to raise a castle using tools and techniques from the 13th century is now abandoned in the Arkansas woods.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

A masterpiece in Golden Gate Park by virtue of the artist’s debt.

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

Recovered from the brink of extinction, at home in the Financial District.

One of few lasting examples of the brief octagon craze that developed into folly.

Russian history in San Francisco.

A famous alternative culture epicenter and where Joplin serenaded young hippies.