An abandoned, unfinished mansion on grounds strewn with lava rocks.

Odd outsider art installations surround a Gold Rush-era ghost town.

This well-traveled chess park offers scenic views of the pacific and a colorful, eclectic clientele.

A second generation sun-powered marvel lights up the night.

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

This brightly made over hotel hides decades of suicide, serial killers, and mysterious deaths.

The timepiece that exonerated a labor radical accused of a parade bombing that killed ten people.

Playable, historic pinball machines fill this Alameda museum.

The creator of the carousel's bingo-pinball hybrid survives in California's oldest gaming establishment.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

This midcentury LA bar was the birthplace of tiki culture.

A no-frills cinephile haven known for showing offbeat, underseen films.

A mysterious, abandoned building rotting on the Brooklyn waterfront.

Historic Greenpoint theater, turned roller disco, now housing a chain pharmacy store.

If you were standing here on October 5th, 1950, you'd be dead.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

An enchanting tunnel of cypress trees leads to an old morse code station still used today.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

A miniature view of the park, caught in time.

This residential door allows San Francisco muggles a glimpse at the wizarding world.

Abandoned power station once home to a squatter community, now being developed into an arts center.

Final resting place of the immigrant who brought artificial seltzer water to America.

A B.Y.O.B. Mexican cantina lives inside one of the last tortilla factories in Brooklyn.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.