19th century pendulum and a clock restored by a rogue group of guerilla artists.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Its buzzing collection honors vibrator history.

A Barbary Coast watering hole built into a Gold Rush shipwreck.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

Faceless white figures loom over the city from the rooftop.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

A pair of pure white felines guard the entrance to a spot of California real estate established as an artist's haven.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

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 private museum dedicated to preserving the heritage of Mardi Gras' most beloved underdog parades, open by appointment.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

The folks at the Devil's Rope Museum want you to get hooked on barbed wire history.

A clear blue swimming hole with hidden caves, still unexplored.

Singing sand that stands as the final remains of an ancient lake.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.