Antoine de Saint-Exupéry's 1943 book shares a surprising connection with El Salvador.

See massive fossils that are over 200 million years old in northeastern Arizona.

A motel dedicated to Southwestern nostalgia.

This rusted car found in Petrified Forest National Park's Route 66 exhibit may be the most photographed abandoned car in the country.

Don't blink or you'll miss it.

This Route 66 classic sports a giant fiberglass rabbit that you can ride.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

A clear blue swimming hole with hidden caves, still unexplored.

John Wayne, Ronald Reagan, and other Hollywood actors have resided in this picturesque Route 66 hotel.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

This refurbished gas station is one of the oldest in Texas, located on the original Route 66.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

From this scenic rockface, you can still see the paths Western pioneers followed.

This erect, phallic geological spire wasn't always named so domestically.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This amazingly preserved Gold Rush town is a historian's dream.

Oregon's only closed-basin hypersaline lake, an important stopover for migrating waterfowl, is in danger of drying up completely.

At the base of Steens Mountain resides an otherworldly desert.

With a crest near 10,000 feet, this treeless fault-block mountain in eastern Oregon provides stunning views and spectacular glacial landforms.

A ghost town in a remote corner of Oregon hosts a touching tribute to Sacagawea’s son.

The steepest tramway in North America provides stunning views of the out-of-the-way Wallowa Mountains in northeastern Oregon.

The oldest city park in Walla Walla is home to hundreds of birds, from wood ducks to white peacocks.