An artsy hidden staircase leads to breathtaking views of San Francisco.

A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

America's most famous piece of self-built architecture.

What was once the largest NFL stadium.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

This monolithic statue was erected in honor of Chief Black Hawk (even if it wasn't made to look like him).

A Roman-style column in Oregon hides a spiral staircase inside.

Abandoned landscape once home to "the world's largest winery."

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

A historic hotel in an old California railroad town with a rowdy reputation.

Where the polar bear watches over everything, and every drink is a double.

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

The location along the shores of the Great Salt Lake of what was once called, "The Coney Island of the West", now sits barren due to arson and time.

This highest peak in New Mexico is named after an explorer who had a habit of lending his moniker to peaks.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A museum dedicated to the alleged Roswell Incident.

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

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

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

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

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

Art museum based around the collections accumulated over 58 years by one eccentric thrift store owner.