A world-class observatory in the California desert.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A tunnel with windows, so you don't miss out on the impressive views.

This giant temperature attraction created some giant electric bills.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.

The world's second largest single-dish radio telescope, once used to contact E.T.

The seamy, underground secrets of Portland's criminal past.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

Along a California highway is a kind of Jurassic Park made of metal.

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

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

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

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

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

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

The unbelievably opulent home built for an infamous newspaperman.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

A Mysterious Masonic tomb in San Luis Obispo.

An alley covered with 20 years of bubble gum.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

Megachurch turned Catholic church comprised of 10,000 glass panes.

This enormous World War II relic is one of the largest wooden structures in the world.

Fourteen curious and controversial white bunnies sit in a circle near Newport Beach City Hall.