This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

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

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

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

A spiritual vortex among the red rocks in Sedona.

This historic national park is covered in the stunning ruins of red rock pueblos.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The entire history of the U.S. Space Shuttle Program is painted on an enormous roadside water tank.

The outcropping is graffitied with the name of the beloved musical Muppet television series.

The state bird of New Mexico, constructed entirely out of garbage.

Home of the International Space Hall of Fame.

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

This is one really big nut.

A museum dedicated to the alleged Roswell Incident.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The "world’s largest honky-tonk" also has its own indoor rodeo arena.

Belly up to the bar in Cowtown, don't forget to buy some boots.

A symbol of Texas pride.

A city park that sits on top of a freeway.

This theatre was made famous after Lee Harvey Oswald was captured inside watching a film.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

This downtown Dallas art installation is always on the lookout.