A popular tourist cave with a dark past.

Golden Gate Park's historic collection of plants.

The restored and active Victorian-era final resting place of San Francisco.

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

Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

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

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

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

An extensive collection of ancient Egyptian artifacts and mummies.

From pre-war whiskey cocktails to prohibition-era speakeasy secrecy, this bar has seen it all.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

Home to the "Circus" trees created by Axel Erlandson.

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

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

One of the last free public hot springs is decorated with hippie art.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

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

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

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

A "Titanic" superfan changed his name to Jack and set up this strange shrine to the blockbuster, complete with Korean food and Tarot readings.

The art and history of the velvet painting are on full display in this Los Angeles museum.

Lucha Libre (Mexican Wrestling) themed taco shop.