If you dial the number in this abandoned office window "Sam Spade’s" secretary will ask you to leave a message.

Before it was abandoned and left to rust alongside the road, this riverboat starred in a John Wayne movie.

This graffiti-covered bridge is the quintessential vision of a place for disillusioned youth to escape the complexities of burgeoning adulthood.

A replica of the first public theater built in California.

Where the first "expert riders, willing to risk death daily" for the Pony Express were recruited.

I Street Bridge is the heaviest swinging center bridge in the United States.

The capitol city's oldest existing cemetery.

The largest whiskey stash on the West Coast survived the 1906 fires--but not without heroic effort.

A brooding mansion of clinker brick stands out among the Victorian houses of Pacific Heights.

This sailor's boneyard was lost under a parking lot for decades before being rediscovered.

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

A psychedelic labyrinth on the San Francisco bay.

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

Fonts are born and bred here at the oldest letterpress type foundry in the United States.

A monument to the love people have for their pets.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

The only visible piece of San Francisco's most famous shipwreck.

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

This giant head is all that remains of a once proud statue that survived an earthquake but not a fall off of a wagon.

A mysterious painting of the self-declared Emperor of the United States watches over a local hof-brau.

This 19th-century church is now a popular roller rink.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

Russian history in San Francisco.

The rustic cabin-like decor of this Arts and Crafts-style church reflects the love of nature central to its little-known theology.