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

It's a pretty creepy lock-up.

This museum on the site of a former rubber plantation showcases the harsh conditions to which rubber tappers in the Amazon were subjected.

This Miami cemetery holds the remains of two Cuban presidents, a Nicaraguan president, and the senior Desi Arnaz. And it was once the resting place of the crown prince of Spain.

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.

This spooky road cut through a mound of ancient coral might be haunted by a witch.

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 hall of fame for circus performers.

A towering, steel behemoth that has graced the skyline of Lakeland, Florida since the early 1980s.

A plaque honors Miami's sister city in the Canary Islands, inviting one to reflect on their place in the world.

This liminal destination combines creaky carnival rides, a classic car museum, and luck-of-the-draw flea market finds surrounded by dust and drive-in movie screens.

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.

A historic landmark and museum filled with curious objects representing the history of Key West.

A small strip of artistic displays is tucked away in a flea market.

Public works and national defense project meant to carve a canal all the way across the state of Florida.

Electrical pylon in the shape of Disney's beloved mouse.

A time capsule of Floridian history fights to survive on the banks of Chokoloskee Bay.

This isolated airport in the middle of the Everglades sees more alligators than planes.

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

These dramatic cola-colored falls have appeared in a poem by Henry Wadsworth Longfellow and a song by Sufjan Stevens.

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

Almost half-way between the Equator and North Pole.