The Cadillac Ranch for monster truck aficionados.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

The uniquely-designed winter home and sculpture studio of Anna and Archer Huntington.

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

I-95's Tijuana-style celebration of kitsch at the Carolina border.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

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

The museum chronicling a treasure hunter's dream, fulfilled.

A graveyard of bathyspheres and diving bells paints a weirdly accurate account of ocean exploration's rickety history.

A historic presidential getaway on the continental United States' southernmost island.

"We Seceded Where Others Failed."

This now-deactivated naval base defended the Florida coast for centuries.

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

The unique collection includes bronze cast handprints of some of America's most famous astronauts.

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

A building so large that it has its own weather.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

A monument celebrating the idea of reaching inaccessible places.

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.”

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

A humid oasis combines recreation with exploration in a unique underwater cavern.