This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

"Only the devil could play golf here."

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

A former utopian healing center created by a huckster and built by derelicts.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

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

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

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

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

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

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.

A geological mystery on Camelback Mountain.

An urban laboratory.

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

The ancient latrines of the Greeks, in all their public glory.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

Roman ruins top white travertine terraces formed by ancient hot springs.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

A sacred lake with thousands of sacred carp and a biblical history.