A replica that won't float away.

A house carved into a rock in the 1940s.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

Golden Gate Park's historic collection of plants.

The famous animator's private station house and man-cave was the birthplace of imagineering.

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

This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

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

Beautiful Victorian buildings from L.A.'s forgotten architectural past.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

Secret Manor, a house full of legends, the least of which is the haunting of long-deceased ladies of pleasure.

A former utopian healing center created by a huckster and built by derelicts.

An overlooked and unassuming engineering marvel.

Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

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

Ingenious bakery opens up the first Cupcake ATM at their flagship location in Beverly Hills.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

An unreal vintage shop that wears its dadaist influence on its zombie fish.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.