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

Thousands of turbines whir at at the origin of North American wind power.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

Marta Becket's hand-painted theater in the desert.

Golden Gate Park's historic collection of plants.

A century and a half of research in the sciences and natural history, still going strong.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

St George's Leprosy Museum depicts the gruesome afflictions of those suffering from the disease.

Home to three historic ships from the age of Vikings.

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

Oakland's beautiful monumental cemetery.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

San Francisco's first World's Fair, dedicated to the wonders of California.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

Furniture tries to escape an abandoned building in San Francisco.

For a time this small Florida town of less than 1,000 residents was the national leader in dismemberment.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

A tribute to Ponce de Leon's supposed quest for eternal youth.

Town of spiritualists and mediums in Florida.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

A geological mystery on Camelback Mountain.

A museum dedicated to the alleged Roswell Incident.

Like Mardi Gras, only everyone's a pirate.