Acres of natural wonders left behind by a socialite-turned-gardener.

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

This 19th-century church is now a popular roller rink.

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

Art in the form of a winding, man made crack in stone.

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

Faceless white figures loom over the city from the rooftop.

One of few lasting examples of the brief octagon craze that developed into folly.

Over 315,000 preserved amphibians and reptiles in jars.

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

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

Fonts are born and bred here at the oldest letterpress type foundry in the United States.

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

Tenacious mummies survived dental problems, eternal entombment, and more than their fair share of devastating fires.

A library and museum dedicated to typography.

Half of a house.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

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.

A monument to the love people have for their pets.

An overlooked and unassuming engineering marvel.

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

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