Guns that have been defending San Francisco since 1904.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

Reverend Franzo Wayne King administers spiritual enlightenment through the music of the jazz legend.

Recovered from the brink of extinction, at home in the Financial District.

Over 315,000 preserved amphibians and reptiles in jars.

A speck of nature and art in one of San Francisco’s most notorious neighborhoods.

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

Adolph Sutro's little-known, geographically inaccurate, deprecated monument.

A man-made island in scenic San Francisco Bay.

A walk down memory lane in the heart of one of San Francisco's most notorious neighborhoods.

Tenacious mummies survived dental problems, eternal entombment, and more than their fair share of devastating fires.

This turn of the century masterpiece has a mysterious goaty interloper.

A monument to the love people have for their pets.

An overlooked and unassuming engineering marvel.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

A hidden subterranean installation offers a view of the sky.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

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

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.