Faceless white figures loom over the city from the rooftop.

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

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

Furniture tries to escape an abandoned building in San Francisco.

The Boston square dedicated to the dark poet who was born nearby.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

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

A Barbary Coast watering hole built into a Gold Rush shipwreck.

Where the alchemists dream of transmuting base metal into gold was actually achieved.

The rusting remains of the largest assembled WWII fleet on the West Coast.

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

An vast warehouse of everyday treasures in Berkeley, CA.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

San Francisco's newly reopened hands-on science museum.

A man-made island in scenic San Francisco Bay.

An enormous artwork that colorfully celebrates over 150 years of US military achievements.

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

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

A store that sells all manner of bones, insects, and animal curiosities.

Concrete strongholds stand guard over the Golden Gate.

The former Naval shipyard is open for exploring - mostly.

The haunting ruins of Jack London's dream house.

Massive prehistoric mammals used these stones as oversized scratching posts.

340 bicycles, 65 feet high.