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

This contorting sculpture is the tallest in San Francisco.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

Furniture tries to escape an abandoned building in San Francisco.

An essential stop before plundering, BYO Cutlass.

This Oakland fairytale kingdom, fiercely devoted to childlike whimsy, was an early inspiration for Disneyland.

The longest burning light bulb in the world.

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.

Elephant seals and sea lions have turned the abandoned buildings on this island into their endangered love shack.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

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

Subterranean house made out of a grain silo, located in the Santa Cruz Mountains.

An ominous concrete cube cuts a dystopian silhouette atop this California mountain.

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

One of the largest Marian shrines on the West Coast stands rather unexpectedly in Silicon Valley.

This municipal playground was co-created by the father of one of the most playful characters ever.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

It is locally loved and ridiculed for literally looking like poop.

A statue commemorate Tommie Smith and John Carlos's brave protest at the 1968 Olympics, a watershed moment for civil rights.

The headquarters of a secretive order is also a beautifully-designed park.

An extensive collection of ancient Egyptian artifacts and mummies.

The largest permanent Monopoly board makes one of the longest games even bigger.

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