The ghostly remains of an accidental sea.

One of the most unusual geological features, recognizable from a dozen hit movies.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

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

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

A working miniature city designed to teach kids about safety and presumably city planning.

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

This museum looks at the history of one of America's most famous prisons and most beloved albums.

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

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

One of the best absinthe distilleries in the United States.

Playable, historic pinball machines fill this Alameda museum.

A 90-acre park on former landfill that hosts an annual kite festival.

Worker-owned cooperative and resource for those looking to lighten their ecological footprint.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

A pier that used to act as a busy ferry dock is now a decaying favorite of local fisherman and urban artists.

An amazing collection of fantastic reptiles, amphibians, spiders, and insects.

An vast warehouse of everyday treasures in Berkeley, CA.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.