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

A pair of disused Los Angeles electrical poles now glow with delicate windows into the past.

"The greatest unknown literary treasure in Los Angeles."

A modern day curiosity cabinet.

A monument to the love people have for their pets.

Guns that have been defending San Francisco since 1904.

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

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

A 300-ship graveyard, with a few still visible at low tide.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

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

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

The only castle in North America to ever house European sovereigns.

Part bookstore, part café, and part forest.

Art in the form of a winding, man made crack in stone.

San Francisco’s century-old Christmas Tree.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

An overlooked and unassuming engineering marvel.

This print shop boasts one of the largest pinball arcades in San Francisco.

A hidden subterranean installation offers a view of the sky.

San Francisco's first World's Fair, dedicated to the wonders of California.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

Olfactory delights in San Francisco's Botanical Gardens.