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

Explore 10 acres of environmental sculptures.

Beautiful Victorian buildings from L.A.'s forgotten architectural past.

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

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

Eons old volcanic activity created one of the most stunning rock formations in the United States.

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

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

A ghost town at the airport is now a refuge for blue butterflies.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

An inconspicuous footbridge beloved by San Diego locals.

A common entry point to the Griffith Observatory trail holds its own wonders.

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

San Francisco's newly reopened hands-on science museum.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

One man's vast collection of artifacts and ephemera from matchbooks and postcards to vintage neon signs and cars.

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

A hand-built folk art installation covered with messages of God's love.

The rocks in this arid basin leave trails of movement behind them.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

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

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

A library of rare occult books in Los Angeles.