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

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

A building so large that it has its own weather.

A Circus legend leaves an unexpected endowment.

A haunted hill that supposedly defied gravity.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

Less a museum than a bizarre fantasy world created by artists and engineers.

The former sign of this immortal music venue is just that--undying.

A snapshot of the city's fascinating voodoo culture.

The final resting place of New Orleans' most famous voodoo priestess.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Home to drunken tower-climbing goats... seriously.

A real flying saucer, contracted by the U.S. Air Force.

The largest earthwork effigy in the world.

Deep scars on the earth left by the Ice Age.

Abandoned former poorhouse, bible college, and haunted house in an Ohio hamlet.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

A hot dog stand where the heads are just as hot as the dogs.

The subtle science of a master molecular gastronomist.

A monument to the art of slicing people open.

These pretty kitties killed and ate as many as 135 railway workers.