The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

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

A large sculptural artwork and garden in Escondido, California.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

The world's first disc golf course has the Jet Propulsion Laboratory as a neighbor.

An unfortunate geological resemblance to Satan has labeled this Pasadena gorge as a passage to the underworld.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

Sojourn to the past at this residence teeming with 1950s memorabilia.

A world-class observatory in the California desert.

Outposts of this restaurant chain were shaped like jaunty chapeaus.

This former stomping grounds of the most eminent astronomers of the early 20th century.

A giant donut stands as a popular symbol of Los Angeles iconography.

Sports history, made in the Arroyo Seco.

The neighborhood of Eagle Rock is named after a gigantic boulder with a shadowy surprise.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

A stellar example of Art & Crafts architecture, and a movie set to boot.

A Masterpiece with a Tragic History.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

The simple auditorium that launched a pop icon's career into the stratosphere.

The final resting place of a space program monolith, soon to be unveiled again to the public.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

Historic funicular railway, believed to be the shortest railroad in the world.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."