Tiki luxury on Nob Hill.

Olfactory delights in San Francisco's Botanical Gardens.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

A psychedelic labyrinth on the San Francisco bay.

A mesmerizing disco ball-like sculpture along the Sacramento River Walk.

An old California photo stand has been turned into a shrine to the cozy art of crochet.

A castle that was built stone by stone by an eccentric journalist.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

Venue for strange sideshow displays and musical acts.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

The fairy tale castle of the "fairy-tale king."

Medicinal spa created with the discharge from a geothermal energy plant.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

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

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

World's largest collection of serial killer artwork and other macabre exhibits.

One of the only known surviving coconut palm trees in the entire state.

Most famous work of one of Frank Lloyd Wright's sons.

An eclectic trailer park retreat in the middle of the California desert.

Explore 10 acres of environmental sculptures.