Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

An unusual geological feature towers over the remains of a dark episode in United States history.

A devilishly named gorge that was a sign of salvation for many pioneers.

A popular rock that acted as a waymarker for American pioneers.

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

Creek water that starts here has a 50/50 chance of ending up in the Atlantic or the Pacific.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

A miraculous natural phenomenon known as "the spring that breathes."

The first declared National Monument in the United States.

This set of hot springs also comes with fantastic views.

A museum dedicated to the history and art of staying clean.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

This museum glorifies the humble potato.

Home to the deepest rift anywhere on Earth.

The oldest badlands in North America, Makoshika State Park takes it name from the Lakota words for broken land.

The oldest continuously-operating Chinese restaurant in the United States has been in business since 1911.

A rapidly disappearing glacier filled with extinct grasshoppers, perfectly preserved in the ice.

The only road through the heart of Glacier National Park.

New fungal and bacterial species call this deadly lake home.

Bison, America's national mammal, are staging a slow comeback in Ohio's prairie parkland.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.