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

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

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.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

On Hilton Head Island this bronze King of the Sea rules all things briny—and lets you know if you’re late for lunch.

Settled in 1696, abandoned after the Revolutionary War.

The only working large-scale tea plantation in the United States.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

A quirky Poe-themed joint on an island keen to celebrate its overlooked connection to the famous writer.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

The highest bridge in the world rises a dizzying 1,854 feet above the river.

Tiny historical streetcars wind through a small scale version of Crescent City in this whimsical train garden.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.