Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

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

A building so large that it has its own weather.

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

These ruins are all that remain of what a Spanish barrack that likely housed a quarry overseer, masons, and stone cutters involved in the construction of the Castillo de San Marco.

One of the oldest, tallest, and most haunted lighthouses in America.

A Gilded Age hotel turned eclectic museum of Tiffany glass and curiosities

St. Augustine's record-setting narrow street was designed to protect against pirates.

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

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

America's first wax museum opened in 1948.

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

Built around 1723, this is the oldest surviving home in the U.S.'s oldest colonial city.

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

This curio museum seems like the type of place you might find a mogwai or a monkey's paw.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

This shrine commemorates the site of the first known Catholic mass in the United States.

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

Gutted airplanes slowly decay in a Florida field.

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

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.

The oldest continuously-running professional dinner theater in the United States.

These winding paths and vertical ramps have been inspiring skateboarders for nearly half a century.

This two-and-a-half-ton chunk of rock was gifted to the Prudential company by the British Navy in 1955.