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

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

Tiki luxury on Nob Hill.

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

Along a California highway is a kind of Jurassic Park made of metal.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

A popular tourist cave with a dark past.

Commonly referred to as the most photographed Victorian home in the United States.

The unbelievably opulent home built for an infamous newspaperman.

San Francisco Bay's ghost town.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

The ghost town that ended up on Ebay.

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

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

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

Venue for strange sideshow displays and musical acts.

The ghostly remains of an accidental sea.

A trash dump made beautiful by nature's power.

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

A 140-year-old castle with underground caves hidden in San Francisco.

A psychedelic labyrinth on the San Francisco bay.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.