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

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

A building so large that it has its own weather.

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

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

A monument celebrating the idea of reaching inaccessible places.

The smallest post office in the United States is no bigger than a broom closet.

A haunted hill that supposedly defied gravity.

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

The world's largest private aircraft collection.

A Florida college boasts the world's largest single-site collection of structures designed by Frank Lloyd Wright.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

A gleaming white tower in ornate Indian style soars above the low-slung bungalows of north Tampa.

The highway's southernmost spot is a beloved local attraction.

An oddities shop that dabbles in the deathly and beautiful.

These former theme park figures have a new lease on life outside a water plant-turned-restaurant.

Step back into the glory days of Florida's nascent tourism industry at this Gilded Age palace.

Like Mardi Gras, only everyone's a pirate.

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

An octet of classic chrome trailers speared into the ground act as a tribute to the silver bullets of the open road.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

Visitors flock to see this church tower's unintended feature: It happens to resemble a giant chicken from multiple points of view.