The only visible piece of San Francisco's most famous shipwreck.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

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

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

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

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

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

Furniture tries to escape an abandoned building in San Francisco.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

Historical trolley restoration and operation at History San Jose, Kelly Park.

From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

The largest permanent Monopoly board makes one of the longest games even bigger.

This giant shopping mall still holds signs of its automotive past.

An extensive collection of ancient Egyptian artifacts and mummies.

The headquarters of a secretive order is also a beautifully-designed park.

A giant chess set, minus the psychedelic drug trip.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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

Megachurch turned Catholic church comprised of 10,000 glass panes.

A massive volcanic plug is now a protected area that hosts a number of bird species.

A house built from trash known as the poor man's Hearst Castle.