The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

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

One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

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

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

A motel dedicated to Southwestern nostalgia.

Honoring the famed folktale author, this California museum looks like it belongs in the Black Forest.

An alley covered with 20 years of bubble gum.

Oldest building in California still in use.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

This memorial pyramid marker honors one of the United States Government's first official camel riders.