Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

Oldest building in California still in use.

Church and home-museum of a 1920s female revivalist preacher with a very sordid past.

A glittering South Asian anomaly in a wealthy Los Angeles suburb.

Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

The last orange grove of the San Fernando Valley is owned and protected by CSU Northridge.

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

An abandoned car and strange wooden debris are among the scattered remains of the old sand and gravel quarry.

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

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

Colorful Native American paintings are hidden within this small cavern.

Barely visible foundations remain where Stow Lake’s “observatory” once welcomed visitors.

Amazing meticulous gardens of personal wood carvings, Hydrangea, Canna, and many other flowers.

A garden oasis filled with flowers mentioned in the works of William Shakespeare.

On a barren hillside in the Yucca Valley, the recently restored Desert Christ Park has attracted pilgrims and kitsch hunters for over 50 years.

This peaceful garden is hidden on the grounds of a spiritual organization founded by a pioneer yogi.

A hidden world of exotic succulents and cacti.

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

The remains of a 12th-century chapter house in Golden Gate Park.

This turn of the century masterpiece has a mysterious goaty interloper.

A couple turned their front yard into an artistic masterpiece.

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

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

Located near the U.S.-Mexico border, this park remembers the famous raid of General Francisco “Pancho” Villa and his soldiers.