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

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

Eclectic collection of dark and macabre antiques.

The abandoned personal amusement park of the King of Pop.

Exotic feline breeding compound and conservation center.

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

Haunting and beautiful trees, doomed to die.

One of the most unusual geological features, recognizable from a dozen hit movies.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

A hotel and restaurant serving as the mecca of kitsch.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

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

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

Medical and zoological curiosities for sale.

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.

A whimsical tower with a spiral staircase, inspired by the Space Age and the Möbius strip.

Continuing the tradition of the dime museum in style.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Experience the "opulence, grace, and grandeur of Eureka's most famous Victorian Inn."

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A museum befitting the city responsible for supplying the majority of the world's LSD.

A Museum of Holography frozen in 1974.