The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

A museum dedicated to the alleged Roswell Incident.

The final resting place of the living embodiment of the famous Forest Service symbol.

The site of Billy the Kid’s most famous escape and the end to the Lincoln County War.

This sculpture is intended to reset a person’s creativity.

More than 21,000 images fill this overlooked gem of a prehistoric site.

High in the Sacramento Mountains, a facility dedicated to studying the sun.

This is one really big nut.

Home of the International Space Hall of Fame.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

The state bird of New Mexico, constructed entirely out of garbage.

An exotic wildlife habitat right off The Strip.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

The first life claimed by this record-breaking peak wasn't lost to exposure or a fall but rather lightning.

A charming desert roadside bakery that produces 10 times more bread daily than it has residents in its town.

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

Art Deco stylings conceal the true nature of this bridge.

I Street Bridge is the heaviest swinging center bridge in the United States.

A replica of the first public theater built in California.

This 19th century train workshop is a treasure trove of railroad history.

The California capital city once stood 10 feet lower than it does today.

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