A 1920s speakeasy that had rum runners racing up and down the shores of California.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

A rough granite monument marks the spot where Europeans first caught sight of the San Francisco Bay.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

Two pillars set 10 paces apart commemorate the "last notable American duel."

An vast warehouse of everyday treasures in Berkeley, CA.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

A pier that used to act as a busy ferry dock is now a decaying favorite of local fisherman and urban artists.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

Abandoned landscape once home to "the world's largest winery."

Once the largest winery in the world, this castle-like building now sits abandoned on the San Pablo/San Francisco Bay shore.

The former Naval shipyard is open for exploring - mostly.

Nuclear waste dump site now an environmental sanctuary.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

An enchanting tunnel of cypress trees leads to an old morse code station still used today.

This abandoned boat was left in place thanks to its rotting beauty.

Massive prehistoric mammals used these stones as oversized scratching posts.

The southernmost outpost of the Russian Empire in colonial America.

This whimsical seashell-shaped place of worship was designed to blend into its surroundings.

The mysterious round rocks of Schooner Gulch.

A local dialect born in the late 19th century is only spoken in this isolated California valley.

The largest drain hole in the world.