The largest drain hole in the world.

This ultra-modern home clings to the slope of the Hollywood Hills on a precarious stilt.

Abandoned bridge hidden deep in the San Gabriel Mountains.

The remains of a ruined mansion memorialize the 1906 earthquake.

In this century-old literary safehouse, print is alive and well.

The final resting place of a space program monolith.

An unfortunate geological resemblance to Satan has labeled this Pasadena gorge as a passage to the underworld.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

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

Magical-looking cottages that inspired one of the most famous animated films ever.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

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

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

A 300-ship graveyard, with a few still visible at low tide.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

Historic marionette theater features thousands of handmade puppets and free cups of ice cream.

This glamorous old building is said to have inspired the Tower of Terror.

Sister store to the Echo Park Time Travel Store.

This grand mansion has starred in everything from Bones to Buffy.