A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

These markers are used to document elevation changes around the famed dam.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

In the middle of the desert, miles from any human life, sat an anomalous pay phone that still magically answers your calls.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

The ghost town that ended up on Ebay.

The ghostly remains of an accidental sea.

Version of the French Riviera destroyed by the sea.

A hand-built folk art installation covered with messages of God's love.

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

The world's largest military aircraft cemetery.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

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

What is the Thing?

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

The former home of the army detachment that captured Geronimo.

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

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

When ecosystems collide in the arid Southwest.

The largest source of fossilized insects anywhere.

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

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

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