This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

A unique geological area spiked with wind-carved rocks that resemble teepees.

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

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

America's only nuclear missile silo open to the public.

The current Eureka County Courthouse replaced an all-wooden structure that had previously been an ice-skating rink.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

The only road through the heart of Glacier National Park.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

Home to the deepest rift anywhere on Earth.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

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

A humble garage, world-famous for being the epicenter of a technology revolution.

The legendary building that needed ghostly approval before being built.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

The ghostly remains of an accidental sea.

Where there's quartz, there must be gold. Thus is the story of the mines of Julian, and the titillating times of the Gold Rush.

The ghost town that ended up on Ebay.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Collection of vintage trailers double as hotel rooms.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.