The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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

This abandoned boat was left in place thanks to its rotting beauty.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

George Lucas donated this park to honor the birthplace of his two biggest movie franchises.

This fountain was once heralded as the largest in the world.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

The most playful of the life-sized statues that make up Singapore's "People of the River."

The highest pedestrian bridge in Singapore looks like a series of undulating waves rising between two public parks.

One of the largest Chinese cemeteries outside of China spent years overgrown and forgotten.

This $62 million dollar temple was erected to house one little dental fragment of religious history.

A Buddhist theme park brings you a Buddhist version of Hell.

This mountaintop lake bubbles and steams in a perpetual boil, thanks to its direct link to the Earth's interior.

This old-world mansion with lush gardens is a gem in the heart of Silicon Valley.

A classically inspired temple in Redwood City.

A rough granite monument marks the spot where Europeans first caught sight of the San Francisco Bay.

The most beautiful Taco Bell in the world even has surfboard parking.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.