This general store is stocked with memorabilia from the 1930s onward—almost none of it for sale.

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

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.

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

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

The third tallest lighthouse in America once guided author Stephen Crane to safety.

Opened in 1976, this monster-sized version of the fast-food franchise is sometimes called the Epic McD.

If you don't look closely, you might mistake this sculpture for just another passenger waiting at the airport.

A vast array of tropical plants collected by a vacationing couple.

This small island was the first National Wildlife Refuge ever created in the United States.

This small beachside park commemorates the possibilities of discovery.

Believed to be haunted, this old cemetery is beautifully adorned with Spanish moss hanging from the trees.

A tribute to one granddaughter's old apartment which now represents the whims of each visitor.

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Architectural monsters are devouring this palace's every door and window.

2300-year-old Roman road connecting the empire.

An alchemist's “magic door” stands in the middle of a Roman park.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Town of spiritualists and mediums in Florida.

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

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