The final resting place of a space program monolith.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

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

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

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

Quite simply the largest tree in the world (by volume).

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

World-famous, Pink's still manages to keep its prized cult fetish status.

Gift shop offering toe tags and chalk body beach towels tucked into a coroner's office.

The private clubhouse for the members of the Academy of Magical Arts.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A hotel and restaurant serving as the mecca of kitsch.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

A winding path built in secret on the edge of the continent.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

America's most famous piece of self-built architecture.

The ghostly remains of an accidental sea.

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