This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

Intertwined, interspecies trees which locals believe can grant boons to lovers.

It's a pretty creepy lock-up.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

A tribute to Ponce de Leon's supposed quest for eternal youth.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

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

This building contains handprints that are well over a century old.

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

The site of the Scopes Trial contains a small exhibit dedicated to the famous case.

The pan man stands as a testament to the functionality of American cast iron cookware.

This stone incorrectly marks the 35th parallel, causing some territorial kerfuffles.

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

The alley connecting two of country music’s most historic venues has a rich history of its own.

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

This limestone outcropping was once a ceremonial site for ancient Native Americans.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

This large cave is a summer home to thousands of bats and has a rich history dating back to prehistoric times.

This historic train station has been converted to a locomotive themed hotel.

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