This hidden fire lookout offers spectacular views of Sequoia National Park.

Four hundred granite steps were built into this massive rock by the National Park Service.

360-degree virtual reality chamber physically immerses scientists into their data.

L.A.'s oldest operating bowling alley is a beautifully restored homage to its speakeasy days.

The so-called "Statue of Liberty of Los Angeles" is on a one mutant mission to keep L.A. weird.

A 9 year-old boy’s elaborate cardboard arcade in his father’s used auto parts store.

This childhood throwback has hundreds of arcade games and pinball machines to transport you back in time.

A museum, art project, and institution that demands we look at the world around us in a strange new way.

A three-story, three-dimensional hobo clown in a tutu welcomes CVS shoppers.

An eccentric folk art landmark made out of discarded bottles by an inspired "grandma."

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

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

On a quiet suburban street stands a peculiarly decorated house covered in mosaics.

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

An unreal vintage shop that wears its dadaist influence on its zombie fish.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

A winding, blood-red tunnel of hardened lava navigable by foot.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

The oldest bibliophilia club in America, with exhibitions on historic books and graphic arts.

This massive underground salt mine now holds a sci-fi theme park in its depths.

A subterranean playground in an abandoned slate mine.

A hidden subterranean installation offers a view of the sky.

Acres of natural wonders left behind by a socialite-turned-gardener.