FDR hoped to find a cure for polio in this Georgia town's warm springs.

Located within a historic park, the beacon is the oldest standing structure in Miami.

A huge musical instrument played by the ocean.

An inconspicuous footbridge beloved by San Diego locals.

The ghostly remains of an accidental sea.

Historic funicular railway, believed to be the shortest railroad in the world.

The only remaining historic maritime signal station in the United States.

Tucked away down this Baytown alley exists a one-of-a-kind art exhibit of technicolor umbrellas.

The gondolas let you glimpse a bird's-eye view of one of the world's highest capital cities.

Bad farming practices caused this unnatural natural wonder.

The timeworn "Yankee Stadium" of the fastest game in the world isn't going anywhere.

America's only city hall with minarets took architectural cues from Ali Baba and the Forty Thieves.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The Boston square dedicated to the dark poet who was born nearby.

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

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

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

This historic train station has been converted to a locomotive themed hotel.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

A museum and doll store featuring a surreal and super sanitized version of where babies come from.

World's largest college campus includes a wildlife sanctuary and a former movie set on more than 28,000 acres.

The first American department store, and home to the largest operating musical instrument in the world.

Where America's first doomsday cult awaited the end of the world.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.