The Citrus Variety Collection at UC Riverside contains two trees of each of the 1,000+ varieties of citrus.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

Spend a day hanging out with domesticated Russian foxes.

A monument to a one-legged kidnapper, horse thief, and charlatan asks visitors to throw rocks in a pile.

Thirteen trees representing the original thirteen colonies were planted with soil from historic Revolutionary battlefields.

This giant temperature attraction created some giant electric bills.

Cows on a ranch are commonplace, scattered cow bones everywhere? Not so much.

The Mighty Wurlitzer organ continues to belt out the tunes at downtown El Segundo's historic home for silent and classic movies.

Art in the form of a winding, man made crack in stone.

The largest whiskey stash on the West Coast survived the 1906 fires--but not without heroic effort.

Experience the "opulence, grace, and grandeur of Eureka's most famous Victorian Inn."

Once the largest windmill outside of Holland, with enormous 114 foot sails.

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

Inky sludge oozes to the surface of this beach thanks to a rare natural tar seep.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

Colorful Native American paintings are hidden within this small cavern.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

Hidden among the multi-million dollar mansions in the Santa Cruz hills is a sanctuary for troubled birds.

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

Once the gateway to the utopian dream-village of a Civil War embalmer.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

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

An Airy Would-Be Solution to a Housing Shortage.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.