The unbelievably opulent home built for an infamous newspaperman.

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

Golden Gate Park's historic collection of plants.

An expansive book store, art gallery, and curio shop with wares ranging from tarot cards to novelty socks.

The remains of a ruined mansion memorialize the 1906 earthquake.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

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

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

A 300-ship graveyard, with a few still visible at low tide.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

A modern mechanical planetary system, part of a 10,000 year clock.

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

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Quite simply the largest tree in the world (by volume).

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

Tiki luxury on Nob Hill.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

A library of rare occult books in Los Angeles.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

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