A remarkably futuristic building sits in the oldest town in Louisiana.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

This 19th-century museum inside of a lighthouse is only accessible during low tide.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

A decaying building marks the site associated with Emmett Till's brutal 1955 murder, which helped sparking the civil rights movement.

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

Near the ruins of a Civil War coastal fortress lies the only known African refugee cemetery in the United States.

The first custom-designed building to showcase the works of Dale Chihuly is a wonderland of glass and light.

Performers, intricate sets, and a real speakeasy tell the story of the 18th Amendment.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

An impressive collection is dedicated to the legendary beast.

This North Carolina store preserves a historic moment in America's movement for racial equality.

Carved faces add a touch of magic to this island's impressive oak trees.

One of the best places to see feral Colonial Spanish Mustangs in the United States.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

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

This folk art compound was built by a fortune teller on the advice of three people from the future.

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

When you can't get to the Pacific, just go to Florida.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

The only building in Louisville (hopefully) that contains two ancient holy skeletons.