An entire town preserved as a historic landmark.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

The first declared National Monument in the United States.

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.

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

A mining town once rife with murderous disputes over its copious treasures now creates income as a popular spot for photo shoots.

A towering bronze statue memorializes the founding father of postwar American conservatism.

Once a year, at exactly 11:11 a.m., this monument comes to life.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

A spiritual vortex among the red rocks in Sedona.

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

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

A Wild West jailhouse that slid down the mountainside.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

Most-visited and most-photographed slot canyon in the American Southwest.

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

Dramatic river bend surrounds a natural red-rocked pedestal.

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

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

Along the old Route 66 is an abandoned trading post made from old telephone poles, built by a former circus clown.