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

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.

A circus legend leaves an unexpected endowment.

It's a pretty creepy lock-up.

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

Meet manatees face-to-face at this zoo for native species.

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

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

This underground oasis is one of North America’s most fascinating prehistoric places—and you can scuba dive in it.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

A much more welcome kind of snowbird vacationer, manatees camp out in these springs every winter.

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

These simple structures are living monuments to the fishermen who built this community over a century ago.

Built in 1927, this pink stucco hotel once hosted stars of Hollywood’s silent movie era. Now it's being brought back to life.

A 19th-century cemetery device to ensure that the prematurely buried would be "saved by the bell."

This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.

A historic canal winds through a unique, swampy landscape.

A statue honoring 44 continuous years of greeting passing ships.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

You’ve heard of bookworms, but this small sculpture at a university library may be the world’s first bookbee.

An early-19th-century hotel with a past that is steeped in the Civil War.

An eerie smiling woman looms above the granite tombstones.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.