This enormous World War II relic is one of the largest wooden structures in the world.

A memorial honoring those who perished in one of the worst construction disasters in U.S. history.

A performance hall at the American Jewish University moonlights as a sci-fi film location set.

A stranded woman lived alone on this remote island for 18 years, inspiring the great children's novel "Island of the Blue Dolphins."

This grand memorial remembers the 20 members of the Los Angeles Times killed when the office was bombed.

A Romanesque sanctuary of calm amid the bustle of downtown Los Angeles.

This vintage car parts store is also a museum devoted to a squat little gem of automotive history.

This park is home to California's first oil boomtown, with structures that have stood for more than a century.

Hidden in one of the skyscrapers on Bunker Hill, this museum features an 1895 stagecoach and peers into California’s gold-lined history.

Pasadena’s Stonehenge.

The largest man-made crater in the U.S. marks the spot where we once tested mining with nukes.

Suburban observatory was personal lab of the father of modern astrophysics.

The show's fictional Korean medical camp was created in the Santa Monica hills.

Though the original building has been demolished, these massive bronze doors were saved.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

Rare collectibles from automated musical instruments to 250 unique automobiles.

The Los Angeles flood disaster that took 400 lives and ended the career of William Mulholland.

Ancient human, animal, and geometric figures drawn in the earth.

An antique store houses the last operational diner from the defunct department store chain.

A classic American barn that was the home of a classic American television star.

Southern California’s Theme Park Beginnings.

The most popular attraction in Southern California was once a flock of ornery bipedal birds that pulled carts.

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

The famous blue house from the classic horror film "Halloween" is now a local landmark.