Pirates had to be ousted from the land where this now ruined Louisiana fortress was built.

The crumbling ruins of this southern American fort have survived storms, war, and cults.

A morbid piece of memorabilia from the most famous shipwreck in current history is just one of the many poignant artifacts in this Canadian museum's collection.

A modest park memorial pays tribute to one of the Titanic's most revered storylines.

This small Irish village suffered the greatest loss of life when the Titanic sank.

Townhouse facade doubles as an RMS Titanic Memorial.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

An ode to "The Queen of Appalachia."

This chestnut box will not be opened until the country music legend's 100th birthday in 2046.

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

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

An abandoned town is hidden in Great Smoky Mountains National Park.

The art studio of an early 20th-century painter, hidden amid the Great Smoky Mountains.

A lake at the bottom of the ocean.

Metal sculpture folk art lining the Kansas Highway.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

How did a massive marine arthropod find its way to landlocked Ohio?

A monument marks the beginning of the longest north-south road in the United States.

This massive solar system model is sprawled out across Maine's suburban wilderness.

The largest hand-carved, outdoor sculpture collection in the state of Maine.

An agricultural research library housed in a former Odd Fellows Lodge.

A shoreline exhibit describing the disastrous first attempt by the French to colonize North America.

A roadside park in eastern Maine first marked the halfway point between the equator and North Pole with a brass pin in 1896.

Built for television, this statue now serves as an unlikely memorial to a fireman who died on 9/11.