This architectural triumph is the only Frank Lloyd Wright house in Alabama.

The longest non-mortared wall in the country is one man's tribute to his displaced Yuchi ancestor's five-year journey to her homeland.

The world's longest known cave system.

Veritable museum of 20th century country music history.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

A strange history museum, with items accumulated by a pair of globe trotting spies.

A natural history museum with an extensive collection of bird dioramas.

A miniature city built by a single hunchbacked monk.

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

This museum dedicated to an oft-overlooked support industry features a surprisingly moving brass diorama of a man being saved from a sinking car.

More than five miles of underground passageways.

This "Plant Farm Museum" is home to the divinely inspired and visionary outsider artwork of Reverend Howard Finster.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

Mysterious library of an infamous financier and spiritual seeker.

One person's lost luggage is another person's treasure.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

A wonderful museum dedicated to the local straw hat industry.