A strange house built only at night, with rumored mystic inspiration.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

The fossilized remains of ancient California redwoods.

The largest drain hole in the world.

Subterranean house made out of a grain silo, located in the Santa Cruz Mountains.

Nursery with extensive collection of flesh-eating plants operated by the author of "The Savage Garden."

A ruined hotel with an unlucky history and an eerie present.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The haunting ruins of Jack London's dream house.

San Francisco Bay's ghost town.

A Roman-inspired temple once controlled half of San Francisco's waters.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

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

A classically inspired temple in Redwood City.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

Neoclassical Revival mansion and set of horror cult classic Phantasm.

A comprehensive collection of Pez dispensers.

Spiral labyrinth hidden in the hills above Oakland, CA.

The memorial to the victims of the Jonestown Massacre carries the names of 918 lost, including one name people wish wasn't there.

Where the alchemists dream of transmuting base metal into gold was actually achieved.

A storybook European village in Berkeley.

Handmade treasures from around the world.

Oakland's beautiful monumental cemetery.

A private home built to resemble the shape of a microscopic creature.