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

This World War II-era bunker is now packed with posters and props from movies and TV shows filmed nearby.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

The flow from this waterfall sometimes comes out of springs below its rim.

Shakespeare has been brought to life in this open air theater for the better part of a century.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

San Francisco's newly reopened hands-on science museum.

Floating man-made island and upscale restaurant.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

The fossilized remains of ancient California redwoods.

California's own majestic geyser is powered by a subterranean volcano.

This historic California cemetery holds the bodies of veterans of both the Civil War and the Donner Party.

A sculpture dedicated to Napa Valley's oldest mineral water company.

Wheels of chrome by the thousands adorn this California Historical Landmark.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

The former Naval shipyard is open for exploring - mostly.

The perfect spot for a picnic, right next to a giant ballistic missile.

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

A historic hotel in an old California railroad town with a rowdy reputation.

The largest drain hole in the world.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.