A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

It should come as no surprise that the world's largest artichoke lies in the town that calls itself the "Artichoke Center of the World."

A tree grown from astronaut seeds which were exposed to cosmic rays.

Version of the French Riviera destroyed by the sea.

Offering commanding views of the California coastline, this restaurant was a hub for the artists and bohemians of Big Sur.

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

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

Where there's quartz, there must be gold. Thus is the story of the mines of Julian, and the titillating times of the Gold Rush.

An old California photo stand has been turned into a shrine to the cozy art of crochet.

Along a California highway is a kind of Jurassic Park made of metal.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

Dozens of feral felines rule a segment of Hollywood's only graveyard.

Golden Gate Park's historic collection of plants.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

One of the ghostly stops along Route 66.

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.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

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

The ghost town that ended up on Ebay.

Explore 10 acres of environmental sculptures.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

Quite simply the largest tree in the world (by volume).