One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

Gold Rush ship-turned-hotel buried underneath San Francisco's financial district.

The sun acts as a key that only fits this giant keyhole twice a year.

An Airy Would-Be Solution to a Housing Shortage.

A dwindling menagerie of anthropomorphic oil derrick animals still dot the barren California landscape.

Cambria's most unique B&B features creative surroundings and fantastic food.

A creepy steel gremlin has protected the Bay Bridge since 1989.

This (occupied) house is 10 feet wide and full of spite.

Once the gateway to the utopian dream-village of a Civil War embalmer.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

Oldest building in California still in use.

Join the circus for a few lessons to learn clowning, acrobatics, and Chinese contortion.

Get up close to emus and ostriches, or buy their tasty meat.

Neoclassical Revival mansion and set of horror cult classic Phantasm.

One woman's Viking Castle on Lake Tahoe.

A "haunted" landmark on the coast of Southern California.

Hidden above a drug store on a nondescript corner of Lincoln Heights is a private clubhouse for intrepid explorers.

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

The memorial to the victims of the Jonestown Massacre carries the names of 918 lost, including one name people wish wasn't there.

Bug-devouring flora are the stars of a special wing of the glass conservatory.

An ultra-modern vista that has been featured in so many films the house is a celebrity in its own right.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

The beautiful 1920 Pantages Theatre remains hidden just underneath the LA Downtown Jewelry Exchange.