Amazing meticulous gardens of personal wood carvings, Hydrangea, Canna, and many other flowers.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

A B&B on a Victorian lighthouse station in San Francisco Bay.

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

A playing field for a popular French past time can be found tucked away in a quiet corner of Golden Gate Park.

A modest reminder of treacherous waters at the Golden Gate.

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

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

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

A living time capsule of the 1960s Richardson Bay water-front.

The remains of a ruined mansion memorialize the 1906 earthquake.

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

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.

Golden Gate Park's historic collection of plants.

The taxidermied remains of the "last wild grizzly bear in California" and of the symbol of the state of California.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

An overlooked and unassuming engineering marvel.

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

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

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

This shop specializes in oddities and Victorian-inspired wonders.

The restored and active Victorian-era final resting place of San Francisco.

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

A 140-year-old castle with underground caves hidden in San Francisco.