This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

The only pig museum in the U.S. holds one of the world's largest collections of pig items.

This quirky local sculpture is quite literally a fish out of water.

This replica of the Greek structure is in the heart of Nashville.

The largest spring in Northwest Arkansas is also home to a sprawling botanical gardens and a historically significant bluff.

An outsider art studio that created a piece of work so popular they had to turn mainstream.

The Old Mill shown in the opening credits of “Gone With the Wind” is actually fairly new, and was never a mill at all.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

Acres of English cottage gardens, unexpectedly nestled in a Cleveland suburb.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

Old car parts and assorted materials get turned into one man's mechanical treasures on the side streets of Cleveland.

A gregarious Ohio resident has been building his whimsical temple to peace for decades.

This pair of eccentric Ohio castles were built by a pair of brothers who wanted to bring a bit of class to the Ohio wilderness.

Three bronze deer sculptures relax along the Scioto Mile.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

The only subway station in the city that still makes use of gap fillers.

The greatest real estate coup of all time.

Red frames showcase remnants of one of New York's original subway stations.

More than 250 sakes are available in an izakaya hidden in the basement of a Midtown office building.

A toxic ghost town sitting atop a massive coal fire.

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

A collection of 20th-century automata, penny arcade games, and musical contraptions.

New York City's smallest piece of private property.

Ride the subways of yesteryear.