World War II-era Nazi compound nestled in the Santa Monica hills.

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

Built in 1899, this luxurious home was part of one of the first gated communities in Los Angeles.

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

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Resting place of Hollywood's immortals is also site of summer film screenings.

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

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

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

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

A fashion designer's dazzling world of Japanese collectibles is hidden in a warehouse downtown.

North America's largest accredited model railroad museum.

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

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

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

This historic Chinese church was relocated and revived as a museum that preserves and celebrates Chinese art, history, and culture.

One of the largest trees of its kind in California.

A magnificent, reportedly haunted mansion built for a composer by Spiritualists.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

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

San Diego's most historic and haunted home.

An inconspicuous footbridge beloved by San Diego locals.