The world's largest private aircraft collection.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

A river runs through this remote valley in a very unexpected way.

This candy-colored storybook village originated as a 19th-century Methodist campground.

A Roman-style column in Oregon hides a spiral staircase inside.

This gallery of prehistoric red ochre art lines the wall of a scenic segment in Utah's San Rafael Swell.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

A ghost town that held steady longer than most, but finally gave up the ghost.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

Civil War dumping ground for the bodies of terrorized Union sympathizers.

Natural rock water slides hidden in the remote forests of northern Idaho.

California's own majestic geyser is powered by a subterranean volcano.

See just what life was like in a 19th-century prospecting town.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

This dilapidated ship carcass covered in trees is a striking sight.

There aren't too many operational funiculars around, but Pittsburgh has two!

This ghost town was once a cult-like religious utopian settlement.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

This strange hill on Old Fort Road where gravity works in reverse has been fascinating locals for years.

An architect's childhood fantasy treehouse made real.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.