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

A bigger-than-life pun that has become a beacon of altruism.

A hidden subterranean installation offers a view of the sky.

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

Visible below the waves are memorials to the city's Gold Rush dead.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

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

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

One man's homage to the sun continues to grow like a glass fractal.

Resting place of Hollywood's immortals is also site of summer film screenings.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

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

A Tucson museum and performance space full of found-object movable sculptures.

A $100,000 tumbleweed decorates an Arizona park and ride that got its priorities a bit tangled.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

The biggest solar telescope in the world helps reveal the secrets of our sun.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

Collection of vintage trailers double as hotel rooms.