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

One of the largest Marian shrines on the West Coast stands rather unexpectedly in Silicon Valley.

This concrete ship has had four careers - World War I tanker, floating amusement park, fishing pier, and artificial reef.

An extensive collection of ancient Egyptian artifacts and mummies.

Furniture tries to escape an abandoned building in San Francisco.

Faceless white figures loom over the city from the rooftop.

A man-made island in scenic San Francisco Bay.

Golden Gate Park's historic collection of plants.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

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

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

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Tiki luxury on Nob Hill.

San Francisco's newly reopened hands-on science museum.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

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

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

A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.

From the Difference Engine to the Cray-1, all under one roof.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

Monumental sculptures of Patrick Amiot, constructed from debris, detritus, and determination.

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

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