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

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A promotional sun clock on the site of San Francisco's great raceway.

A vast city of the dead, where the deceased outnumber the living by more than a million.

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

These subterranean storage areas hold emergency water reserves.

A man-made island in scenic San Francisco Bay.

Perfect your fly fishing technique on their practice ponds.

Join the circus for a few lessons to learn clowning, acrobatics, and Chinese contortion.

Gold Rush-era tombstones line the park's paths.

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

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

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

Golden Gate Park's historic collection of plants.

This print shop boasts one of the largest pinball arcades in San Francisco.

San Francisco’s condensed garden of incredible plant growth.

The first fresco Diego Rivera painted in the United States can be found in the former San Francisco Stock Exchange.

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

This shop specializes in oddities and Victorian-inspired wonders.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

An overlooked and unassuming engineering marvel.

Olfactory delights in San Francisco's Botanical Gardens.

Created in 1972, the famous sculptor's intricately detailed monument to San Francisco is overflowing with city landmarks.