A museum befitting the city responsible for supplying the majority of the world's LSD.

An art collective teaching the more fiery, metal-y art forms.

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

The Flatiron Building's storied West Coast cousin is a lot more into religion.

One of the best absinthe distilleries in the United States.

Playable, historic pinball machines fill this Alameda museum.

A 140-year-old castle with underground caves hidden in San Francisco.

Abortion, prohibition, religion, war, and fear all play a part in the history of this idiosyncratic Pacifica castle.

Radioactivity still cause for concern at this urban explorer's paradise.

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

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

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

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

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

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

The black lab that was voted mayor of a California town is forever remembered by a life-size statue.

A Roman-inspired temple once controlled half of San Francisco's waters.

Successful artist residence program has filled this ranch with dozens of sculptures over the years.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

A hidden world of exotic succulents and cacti.

From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

If you are looking for a used Russian battery, Chinese Ham Radio or other electronic oddities this Flea Market is a good place to start.