Largest collection of mounted dinosaur specimens in the world.

Despite its name, this route in southern Utah offers a heavenly day trip.

Come for the speed, leave in love with the desert.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

A replica that won't float away.

Dig for your own trilobites in this goldmine of invertebrates.

A house carved into a rock in the 1940s.

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.

A small Wyoming town is home to the state's oldest-operating soda fountain.

Dance on a hand-hewn log floor padded with bouncy boxcar springs at a saloon built in 1883.

A small town built on an abandoned airfield has former runways as streets and a bar and grill in an old airplane hangar.

Population: 1.

Miraculous tree that seems to sprout out of solid rock.

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.

This prison-turned-museum is a remnant of the Old West's grizzly, violent past.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

One of the smallest towns in the United States.

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

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

Native Americans built this circle of stones, which was used to predict astronomical events.