An alley covered with 20 years of bubble gum.

A massive volcanic plug is now a protected area that hosts a number of bird species.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

The oldest U.S. Government building in California, and it's State Historic Landmark #1.

The first safe in this California town had to hold all the gold.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

The longest burning light bulb in the world.

A Roman-inspired temple once controlled half of San Francisco's waters.

The black lab that was voted mayor of a California town is forever remembered by a life-size statue.

Thousands of crosses and markers for soldiers who lost their lives in Iraq and Afghanistan blanket a California hillside.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

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

The haunting ruins of Jack London's dream house.

The southernmost outpost of the Russian Empire in colonial America.

A local dialect born in the late 19th century is only spoken in this isolated California valley.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

A Tibetan Temple and Buddhist organization just off the beaten path in Northern California.

This Taoist temple is the oldest continuously used Chinese temple in California.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

A lighthouse built to save lives that took quite a few with its treacherous location.

Perhaps the most scandalous statue of America's first president.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

This monument remembers the first Japanese Americans forcibly relocated during World War II.

This 19th century hydroelectric powerhouse was the first of its kind.