Once the largest gravity dam in the world.

The rusting remains of the largest assembled WWII fleet on the West Coast.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

Drink a Guinness under the wings of Reagan's retired Air Force One in his presidential library.

Sports history, made in the Arroyo Seco.

The White House Situation Room was taken apart in 2006 and shipped to the Ronald Reagan Presidential Library.

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

This giant temperature attraction created some giant electric bills.

North America's largest accredited model railroad museum.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

Oldest building in California still in use.

Finally the worlds of UFO enthusiasts and beef jerky lovers have come together in this roadside shop.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

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

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

The unbelievably opulent home built for an infamous newspaperman.

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

San Diego's most historic and haunted home.

The final resting place of a space program monolith.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

The private clubhouse for the members of the Academy of Magical Arts.