A sudden forest of traditional Papua New Guinean art works is hidden in a corner of Stanford University.

A three-story, three-dimensional hobo clown in a tutu welcomes CVS shoppers.

The overgrown ruins of a once thriving World War I-era copper mine.

This stockpile of junked electronic and mechanical gadgets is a favorite among Hollywood prop masters.

An L.A. traffic island where the faces of locals have been carved into massive granite eggs.

A Bicycle Path in the Sky.

An Airy Would-Be Solution to a Housing Shortage.

A small sculpture garden that provides a microcosmic representation of California.

This beautiful ridge-top trail is dotted by tiny homes apparently built by a group of itinerant fairies.

A large sculptural artwork and garden in Escondido, California.

340 bicycles, 65 feet high.

This odd California folly seems like it was almost designed to accumulate urban legends.

Cambria's most unique B&B features creative surroundings and fantastic food.

Historic house-museum dedicated to the revolutionary gay graphic artist Tom of Finland.

The Hopi-style structure was built by the man who discovered Desert Hot Springs' famous mineral water.

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

This sculpture garden in Death Valley makes you feel like you've slipped into some alternate reality.

Recovered from the brink of extinction, at home in the Financial District.

This collector's home is a constant work in progress.

A brooding mansion of clinker brick stands out among the Victorian houses of Pacific Heights.

An vast warehouse of everyday treasures in Berkeley, CA.

Bug-devouring flora are the stars of a special wing of the glass conservatory.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.