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

Concrete strongholds stand guard over the Golden Gate.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

A decommissioned Naval base now rents itself out for people who want to blow stuff up.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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

340 bicycles, 65 feet high.

The unedited photograph called "Bliss" has graced the screens of over a billion computers.

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

Like a kitschy mirage in the Mojave, this eatery serves up classic 50s-style diner meals and a dinosaur sculpture garden.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

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

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

Semi-recognized center of the world, with many oddities.

A fake town founded by Western movie stars is now becoming a hip desert community.

A music-filled, booze-soaked oasis in the desert.

Oldest building in California still in use.

The remnants of an early automobile route across shifting sand dunes can still be found in the deserts of Southern California.

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

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

A hand-built folk art installation covered with messages of God's love.

Huge otherworldly domed rocks on the shore of a deadly lake.

The ghostly remains of an accidental sea.

Legend says one of the world's largest marine geysers is actually a whale that got wedged within the rocks.