One man has spent decades faithfully constructing this unique brick and cinderblock castle.

Follow the steps, and this roadside artwork will teach you how to dance.

The pan man stands as a testament to the functionality of American cast iron cookware.

Live long and prosper in Tennessee.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Walk the whole Mississippi River!

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

More than five miles of underground passageways.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

This structure among the trees was the result of divine inspiration.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

Elvis's own personal tropical hideaway.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

This icon of the Atomic Age now lays dormant.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

A museum of anything and everything Stooge.

A retrofuturistic art installation in the Pittsburgh Airport.