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

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

A miniature view of the park, caught in time.

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

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

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

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

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

San Francisco’s century-old Christmas Tree.

Approximately 250,000 people left homeless by the great earthquake and fires found shelter in Golden Gate Park.

The remains of a ruined mansion memorialize the 1906 earthquake.

The legendary statue-hating superintendent of Golden Gate Park is honored with... a statue.

A monumental cross hides in the trees in Golden Gate Park.

Barely visible foundations remain where Stow Lake’s “observatory” once welcomed visitors.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

With the touch of a button, you can read a randomly selected short story.

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

A psychedelic labyrinth on the San Francisco bay.

An artsy hidden staircase leads to breathtaking views of San Francisco.

The remains of a 12th-century chapter house in Golden Gate Park.

Golden Gate Park's historic collection of plants.

Olfactory delights in San Francisco's Botanical Gardens.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.