Furniture tries to escape an abandoned building in San Francisco.

A historic office and commercial building located in the heart of downtown San Francisco.

This colorful boulder serves as a canvas for political statements and artistic expression.

A hidden gem, named after a San Franciscan icon, offers spectacular views of the Pacific Ocean.

This historic roadhouse has many tales to tell of San Francisco's early history.

Sitting atop San Francisco's tallest hill, a cross honors the victims of the Armenian genocide.

Lombard Street may be more famous, but this is the real “crookedest street in the world.”

This painted marvel is San Francisco's 400-foot ode to urban biking.

For nearly 50 years, this San Francisco nonprofit has been serving as a mix of recycling center and art school.

Prone to disastrous fires, the city of San Francisco has the Guardian, a fireboat gifted by residents, to watch over them from the bay.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

One time home to turn of the century explosives, now hidden under the Bay Bridge.

A tribute to the artist and activist who created the rainbow pride flag.

These WWII-era murals were initially booed as a libelous portrayal of the American dream but have survived multiple attempts to have them destroyed.

At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

Shoot for par over the bodies of the dead on this cemetery-cum-golf course.

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

Part mural and part sculpture, this work of art sits in the middle of the Promenade, as if swimming in a river of asphalt towards the ocean.

A modest reminder of treacherous waters at the Golden Gate.

A shining, cold, black organ lies in San Francisco's financial district.

Depicting scenes of everyday life - and specific individuals - in Great Depression era San Francisco.

The sole surviving relic of the San Francisco neighborhood cobbled together from old horsecars and streetcars.

Once the largest windmill outside of Holland, with enormous 114 foot sails.