A monument to the love people have for their pets.

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

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

An essential stop before plundering, BYO Cutlass.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

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

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

San Francisco's newly reopened hands-on science museum.

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

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

The ghostly remains of an accidental sea.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

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

The show's fictional Korean medical camp was created in the Santa Monica hills.

The quiet canyon has a tumultuous history involving a doomsday cult.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

Large but largely ignored, these 42 life-size Liberty Bell replicas were a peculiar, unexplained feature on the facade of a Macy's department store.

A cow in the road might subvert the flow of traffic but this one's above it all, quite literally.

Come crisp December nights, this fairly plain neighborhood becomes a holiday dream world.

One man's vast collection of artifacts and ephemera from matchbooks and postcards to vintage neon signs and cars.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

A second generation sun-powered marvel lights up the night.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

World War II-era Nazi compound nestled in the Santa Monica hills.