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

Russian history in San Francisco.

A whimsical antique shop with a strong air of mystery, filled with items from ages, and what feels like worlds, past.

27-room home built with the fortune of a sugar magnate.

A quiet nook at the top of a little-known hilltop park named after California's first poet laureate.

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

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

This teeny-tiny park built by a San Francisco man in 1962 is mostly stairs.

One of few lasting examples of the brief octagon craze that developed into folly.

America's oldest Italian restaurant is a San Francisco institution.

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

The United States' first transcontinental automobile road came to its end at this spot in San Francisco's Lincoln Park.

Where a staggering 747 ships were constructed during World War II.

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

A four paneled, brightly multicolored mosaic adorns the side of this popular grocery store.

An unassuming grey box sitting on San Francisco's Pier 17 is a "sky diary" of the coastal city's temperamental weather.

Once the fastest ship from San Francisco to Tahiti, the Galilee now lays in pieces in three different cities.

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

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

Guns that have been defending San Francisco since 1904.

A monument to the love people have for their pets.

A modest reminder of treacherous waters at the Golden Gate.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

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