It's a pretty creepy lock-up.

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

Location of a reliquary containing bone fragments of 18 saints.

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

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

A lion given to the prime minister somehow got stuffed and sent to Florida.

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

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

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

A haunted hill that supposedly defied gravity.

This small beachside park commemorates the possibilities of discovery.

A monument celebrating the idea of reaching inaccessible places.

Many of the murals covering this sleepy Florida town hide some sort of intentional error.

The futuristic test model of an iconoclastic visionary who wanted to redesign the world.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

Built in just a little over a week this preserved bunker was created to protect our most attractive POTUS while he was on vacation.

Where monkeys run wild and the humans are caged.

This railroad and oil tycoon's lavish estate now stands as a time capsule of the Gilded Age.

The oldest house of worship in Palm Beach has a wonderful tropical garden.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.

Over 120,000 curious objects that have shaped our modern world.

Neglected resting place of some of the city's early luminaries—and a woman encased in concrete.