Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

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

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

This former Mormon settlement is reemerging from the receding waters of Lake Mead.

This massive geographical sculpture is so subtle, it's possible to pass by it without noticing.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

Walk through the sets of old western films at this small museum in Utah.

These mid-century motels once housed the workers who built the Glen Canyon Dam.

A sharp bend in a dramatic river canyon cut through red rocks.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

The graffiti-covered ruins of an abandoned trading post in the middle of the Navajo Nation.

An incredible airplane graveyard sits outside this small museum dedicated to preserving aviation history.

An homage to everyone's favorite prehistoric cartoon family.

The eroded core of an ancient volcano is now accessible by a short hike.

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

The remains of this hell for leather wild west town can still be found in the Arizona desert.

A stealthy Apache hideaway that became the haunting site of a mass grave.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

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

Crafted in 1911, this steam locomotive spent its entire working life in Flagstaff.

A replica of the flagpole that gave a frontier town its name.

Although now a decaying ruin, this stone cabin's history includes several notable figures.

The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

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