The oldest alley in San Francisco is paved with a reminder of the city's original shoreline.

A Barbary Coast watering hole built into a Gold Rush shipwreck.

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

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

This museum explores the history of the book, from scrolls to mass-produced objects through tools, stories, and massive cast-iron binding machinery (some of it operational).

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

San Francisco’s condensed garden of incredible plant growth.

California's most comprehensive horticultural library.

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

A 1920s home transformed into an immersive art experience, where every room is a portal to another realm.

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

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

Outside San Francisco lies a small clown cemetery and memorial.

This old-world mansion with lush gardens is a gem in the heart of Silicon Valley.

A humble garage, world-famous for being the epicenter of a technology revolution.

A hidden world of exotic succulents and cacti.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

The world’s first stop-motion film was created on the racetrack outside this building.

The garage at the childhood home of Steve Jobs was a hangout for the founders of Apple, even if they never built computers there.

A life-sized mammoth sculpture marks the spot where the remains of a Columbian mammoth were discovered in 2005.

Exquisite irises bloom every spring in this hillside garden.

The longest burning light bulb in the world.

Each summer, the migratory bats living beneath the bypass form "batnadoes" at dusk.

A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.