One of the most unusual geological features, recognizable from a dozen hit movies.

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

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

The last Americana on Route 66.

These ancient sacred grounds granted amnesty to those who managed to reach them.

Watch the newest land on the planet form before your eyes.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

Experience a charming 1930s version of "infotainment."

The drama of nature in full effect in this Nevada State Park.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

A charming desert roadside bakery that produces 10 times more bread daily than it has residents in its town.

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

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

Ancient pueblos built into the base of a natural canyon wall.

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

A spiritual vortex among the red rocks in Sedona.

The liveliest ghost town in the state.