Nose around a unique collection of more than 300 natural aromas used to craft perfume fragrances.

A store that sells all manner of bones, insects, and animal curiosities.

A porcelain company's former dumping ground, completely covered in pieces of collectible ceramics.

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

An abandoned Cold War missile radar site.

A B&B on a Victorian lighthouse station in San Francisco Bay.

This abandoned boat was left in place thanks to its rotting beauty.

The remains of a deserted steamboat sit rusting beside an old ferry pier and an abandoned train platform.

The former Naval shipyard is open for exploring - mostly.

The haunting ruins of Jack London's dream house.

An old-timey medicine shop that once served Chinese laborers during the Gold Rush is still open for business to this day.

The smallest country in the world.

A huge collection of rocks, gems, and crystals.

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

The last of a gourmet supermarket chain, this store helped spark California's Food Revolution.

This former boomtown "island" is now submerged below Folsom Lake.

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

A mesmerizing disco ball-like sculpture along the Sacramento River Walk.

The fossilized remains of ancient California redwoods.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

The first U.S. town to secede from the Union, only to vote themselves right back in.