A multi-storied adobe complex has been inhabited for more than a thousand years.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

The Grand Canyon of Texas.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

An extravagant western hotel where every floor is the "ground floor."

A wacky, UFO-shaped house in a suburban neighborhood.

The world's longest known cave system.

Elvis's own personal tropical hideaway.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

This collection of bronze hands comes from astronauts, presidents, baseball greats, and more.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

The man who wasn't there.

A modernist landscape of water and sci-fi concrete.

The maritime museum that boasts the largest nautical library in the western hemisphere.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

Crumbling hotel echoes with the sounds of the '30s.

A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

This Texas windmill field celebrates the power and majesty of the very winds that blow.

A decaying concrete oil tanker served as a disposal location for bootleg hootch.

The world's tallest statue of an American hero.

This soda factory is one of the last in America to use real cane sugar despite the protestations of Dr Pepper.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.