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

A promotional sun clock on the site of San Francisco's great raceway.

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

Julia Morgan's Moorish-Gothic labyrinth of fountains, trees, natural light and Oakland's notable dead.

A hidden subterranean installation offers a view of the sky.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

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

Golden Gate Park's historic collection of plants.

The ghost town that ended up on Ebay.

Abandoned bridge hidden deep in the San Gabriel Mountains.

The hotel room where Janis Joplin tragically died has now become a makeshift shrine to the singer.

One of the ghostly stops along Route 66.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

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

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

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

Acres of natural wonders left behind by a socialite-turned-gardener.

The unbelievably opulent home built for an infamous newspaperman.

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

The tea room that pushed the boundaries of adorable straight into... we can't find the words.

A storybook European village in Berkeley.

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